Short Answer

The highest temperature in Los Angeles on October 15, 2026, is not expected to be between 87° and 88°; the market considers this outcome unlikely (33.0%).

1. Market Behavior & Drivers

The market's sharpest move, a 17.0 percentage point drop on October 15, was driven by a specific National Weather Service (NWS) forecast. While a moderate-to-strong Santa Ana wind event was developing, the official NWS point forecast indicated a high around 88°F for Los Angeles, with a broader zone forecast near 90°F. This figure, while elevated, was evidently below the market's prior expectations and prompted a rapid sell-off.
This drop reversed a 16.0 percentage point spike from the previous day. On October 14, NWS guidance describing a significant warming trend with temperatures 10–15°F above normal from the incoming Santa Ana conditions had pushed prices higher. Traders initially priced in a more extreme heat event based on the general advisory before the specific temperature forecast provided a concrete, and ultimately lower, ceiling for the day's high.
  • The National Weather Service forecasts 88–90°F for October 15, 2026.
  • Unusually warm conditions are expected, driven by heat advisories and Santa Ana winds.
  • Downtown L.A. historically warms more during mid-October offshore-flow heat events.

Current Context

Los Angeles forecasts for October 15, 2026 indicated elevated temperatures. Early Thursday, October 15, 2026, the National Weather Service (NWS) forecast Los Angeles temperatures around 88–90°F, with an hourly peak forecast at 88°F and a zone forecast near 90°F [1][2]. A moderate-to-strong Santa Ana wind episode was the primary weather development, bringing very low humidity, critical fire-weather conditions, and a heat advisory through Saturday [2][3]. Coastal temperatures were expected to be 10–15°F above normal, with a significant cool-down and potential widespread rain anticipated the following week [2][3]. Downtown Los Angeles's climate normal maximum for October 15 was 79°F, while the record maximum for that date was 102°F in 1961 [4][5]. Temperature forecasts varied by specific location within Los Angeles; for example, NWS Downtown Los Angeles predicted 88–90°F, Central Los Angeles (90028) was listed near 80°F, and LAX/Westchester near 85°F, demonstrating that "Los Angeles" has no single temperature without a specified settlement station [1][6][7][8].
Prediction markets showed mixed expectations, and final observational data was not available. Market evidence varied across venues and contracts [9][10][11]. A Kalshi-tracking page listed active markets for >90°F, 89–90°F, 85–86°F, and 87–88°F [9]. A Kalshi contract for 87–88°F was quoted at 33% YES, and a Polymarket contract for 84–85°F was around 17% YES; these represent market prices, not official observations [9][10][11]. As of the research, a preliminary LAX monthly climate report contained observations only through October 14 [12], and the NOAA KLAX observational dataset covered October 15 data only through 08:53 UTC [13]. Therefore, the research results do not establish the final October 15 daily maximum temperature [12][13].
Sources (13)
  1. 1National Weather Serviceforecast.weather.gov
  2. 2National Weather Serviceforecast.weather.gov
  3. 3Los Angeles, CA - National Weather Serviceweather.gov
  4. 4Climatological Report (Daily) - National Weather Serviceforecast.weather.gov
  5. 5https://tgftp.nws.noaa.gov/data/raw/cd/cdus46.klox.cli.fhm.txttgftp.nws.noaa.gov
  6. 6National Weather Serviceforecast.weather.gov
  7. 7Central Los Angeles, CA Hourly Weather Forecast | Weather...wunderground.com
  8. 8Los Angeles, CA Hourly Weather Forecast | Weather Undergroundwunderground.com
  9. 9Kalshi Los Angeles Weather Markets — Temperature & Rain Oddspredictionpilot.io
  10. 10Will the maximum temperature be 87-88° on Oct 15, 2026: 87° to 88° | Live Odds | PicksByOddspicksbyodds.com
  11. 11Will the highest temperature in Los Angeles be between… · PolyBot Propoly-bot.pro
  12. 12National Weather Serviceforecast.weather.gov
  13. 13ERDDAP - LOS ANGELES INTERNTL AIRPORT, CA (KLAX) - Make A Grapherddap.cencoos.org

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

Outcome: 91° or above

📉 October 15, 2026: 17.0pp drop

Price decreased from 27.0% to 10.0%

What happened: The primary driver for the 17.0 percentage point drop was the National Weather Service's forecast for October 15, 2026. Official forecasts indicated a high temperature around 90°F, with an hourly point forecast reaching approximately 88°F for Los Angeles [1][2]. This data, predicting temperatures just below the "91° or above" threshold, likely caused the market's probability for that outcome to decrease. Social media activity was irrelevant to this specific price movement, as the provided sources offer no pertinent content.

Outcome: 89° to 90°

📈 October 14, 2026: 16.0pp spike

Price increased from 23.0% to 39.0%

What happened: The primary driver of the 16.0 percentage point spike was likely the National Weather Service (NWS) guidance issued on October 14, 2026, which described a significant warming trend for Los Angeles on October 15. This guidance indicated temperatures roughly 10–15°F above normal due to Santa Ana winds and included a heat advisory beginning October 15 [3][4][5]. This announcement, indicating a forecast around 90°F for October 15, directly informed the market movement towards the "89° to 90°" outcome [1][2]. Social media activity was not a primary driver; research found no verified social media catalyst for this specific price movement [3][4].
Sources (5)
  1. 1National Weather Serviceforecast.weather.gov
  2. 2National Weather Serviceforecast.weather.gov
  3. 3National Weather Serviceforecast.weather.gov
  4. 4National Weather Serviceforecast.weather.gov
  5. 5WWA Summary for Heat Advisory Issued by HNXforecast.weather.gov

4. Market Data

Contract Snapshot

This market resolves based on the highest temperature in Los Angeles for the specified day. A "Yes" resolution occurs if the temperature falls within a specific range, and a "No" resolution occurs if it falls outside that range. Settlement may be delayed if a material error is found in the initial data publication, with expiration held until corrected data is available or the Expiration Date. If no data is available by the end of this period, all markets will resolve to the last fair price determined by Kalshi.

Market Discussion

Traders currently anticipate the highest temperature in Los Angeles on October 15, 2026, will most likely fall between 87° and 88° (33% chance), closely followed by 89° to 90° (29%). However, there has been a notable decrease in the perceived probability for the 87° to 88° range (down 7%), suggesting a shift in sentiment. While the market still favors warm temperatures, there's a slight increase in the chances for both moderately cooler (83°-84°) and much hotter (91° or above) outcomes.

5. Trust Index

This scorecard was computed Oct 15, 2026 and may not reflect current market conditions.

Octagon Trust Index Kalshi 65 Caution

Order book is critically thin.

Primary risk· Trade quality

How it adds up
Integrity80% of score74Good

Resolution quality is low (30), but Integrity averages all three scores, so the other two pull it up. Only a critically low score would cap the total.

Trade quality20% of score29Avoid

Includes the cost to trade: a $1,000 order can't be filled here because the order book is too thin.

Trust score65Caution

Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index

Trust profile
Integrity4 screens run · 5 don't apply · 1 awaiting data
Market integrity
92Strong

Outcome is hard to influence

No suspicious activity on any screen

Screened clean
Large tradesNo single trade dominates the tape. Clear
Thin-volume movesMoves carried volume Clear
Size patternsNo distribution read Clear
2 screens not run
Outcome control · doesn't apply to this market type
Thin-leg conviction · doesn't apply to this market type
Info fairness
85Strong

No privileged early knowledge

No suspicious activity on any screen

Screened clean
Information exposureNo concentrated group can know the outcome materially early. Clear
4 screens not run
Move vs. catalyst · doesn't apply to this market type
Longshot repricing · doesn't apply to this market type
Pre-broadcast certainty · doesn't apply to this market type
Cross-venue timing · data source not connected
Resolution quality
30High Risk

No suspicious activity on any screen

Settlement depends on interpretation — verify the rules and source before trading.

Resolution rules read: Ambiguous

Liquidity
39Very thin

Hard to fill near the screen price

6 contracts · worst first

82° or below5
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

83° to 84°6
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 10% vs realized 40%
85° to 86°27
Very thin · high confidence

Typical bar range 14.6% of price over 22 traded bars

89° to 90°49
Thin · high confidence

Typical bar range 10.3% of price over 22 traded bars

87° to 88°57
Thin · high confidence

Typical bar range 8.7% of price over 22 traded bars

91° or above79
Tradeable · high confidence

Typical bar range 11.5% of price over 21 traded bars

24h traded notional $2,284 · 24h
Move quality
67Mostly confirmed

Most moves carried real volume

6 contracts · worst first

91° or above51
Mixed · high confidence

Volume opposes the move over 6h

89° to 90°59
Mostly confirmed · high confidence

Volume opposes the move over 6h

85° to 86°82
Confirmed · high confidence

Volume confirms the move over 6h

83° to 84°94
Confirmed · high confidence

Volume confirms the move over 6h

87° to 88°—
No significant move (6h)

Price was stable over the last 6 hours.

82° or below—
No significant move (6h)

Price was stable over the last 6 hours.

Rule clarity
40Ambiguous

Counts toward Resolution quality, not here

6 contracts · worst first

87° to 88°40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
89° to 90°40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
85° to 86°40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
83° to 84°40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
91° or above40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
82° or below40
Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
Trade quality
29Avoid

Order book is critically thin

Thin market — entering or exiting at fair value will be difficult.

Outcome quality 36 (notional-weighted across 6 scored legs)

$100 order: 2.6c slippage (~9% of a 30c contract)

$1,000 order: book too thin to fill

$10,000 order: book too thin to fill

87° to 88°40Market scoreLiquidity57Move quality–Rule clarity40
Why 40
Liquidity
57 · Thin · high confidence

Typical bar range 8.7% of price over 22 traded bars

Move quality
No significant move (6h)

Price was stable over the last 6 hours.

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
89° to 90°Primary40Market scoreLiquidity49Move quality59Rule clarity40
Why 40
Liquidity
49 · Thin · high confidence

Typical bar range 10.3% of price over 22 traded bars

Move quality
59 · Mostly confirmed · high confidence

Volume opposes the move over 6h

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
85° to 86°40Market scoreLiquidity27Move quality82Rule clarity40
Why 40
Liquidity
27 · Very thin · high confidence

Typical bar range 14.6% of price over 22 traded bars

Move quality
82 · Confirmed · high confidence

Volume confirms the move over 6h

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
83° to 84°6Market scoreLiquidity6Move quality94Rule clarity40
Why 6
Liquidity
6 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 10% vs realized 40%
Move quality
94 · Confirmed · high confidence

Volume confirms the move over 6h

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
91° or above40Market scoreLiquidity79Move quality51Rule clarity40
Why 40
Liquidity
79 · Tradeable · high confidence

Typical bar range 11.5% of price over 21 traded bars

24h traded notional $2,284 · 24h
Move quality
51 · Mixed · high confidence

Volume opposes the move over 6h

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear
82° or below5Market scoreLiquidity5Move quality–Rule clarity40
Why 5
Liquidity
5 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
No significant move (6h)

Price was stable over the last 6 hours.

Rule clarity
40 · Ambiguous · low confidence

Outcome language is subjective — the result is a judgment call.

objective outcome · Flaggedofficial source · Uncleartime boundary · Clear

underwriting_v1.4 · computed Oct 15, 2026

6. What specific pressure gradients and upper-level wind patterns would the National Weather Service be monitoring between October 12-14, 2026, to forecast a strong Santa Ana event for October 15?

LA-Plateau Pressure Gradient for Extreme EventExceeds 18 mb [1]
San Diego-Las Vegas Pressure Gradient for Strong EventMore than 9 mb [1][2]
850 mb Winds for Extreme EventApproximately 40 kt [2][1]
National Weather Service forecasters monitor specific surface pressure patterns for Santa Ana events. Forecasters look for rising surface pressure over the Great Basin or interior California, coupled with lower pressure along or offshore Southern California, which creates the crucial offshore pressure gradient and northeast-quadrant flow into the Los Angeles Basin [2][3]. A common synoptic pattern involves a short-wave trough traversing Nevada, Arizona, or Southern California, followed by a rapid buildup of surface high pressure across northern/central California that expands into Nevada and Utah [2].
Key pressure gradient benchmarks and upper-level wind signals indicate strong events. For a strong Santa Ana, forecasters look for an offshore Los Angeles-to-northern-plateau pressure gradient exceeding approximately 18 mb, indicative of an extreme event [1]. Additionally, a San Diego–Las Vegas gradient greater than 9 mb is typically observed [1][2]. The most significant upper-air indicator is an upper-level low positioned over southern Nevada, western Arizona, northwestern Mexico, or Southern California, generating a southeast-to-northwest height gradient and moderate-to-strong north or northeast flow at 500 and 700 mb over the Great Basin [2]. Strong events are further bolstered by cold advection, robust 700-mb thermal support, and upper-level winds of 25–30 kt near 850 mb, with approximately 40 kt signifying an extreme case [2][1].
These monitoring benchmarks are diagnostic, not date-specific forecasts for future events. It is crucial to understand that these outlined conditions serve as diagnostic benchmarks rather than date-specific forecasts [1]. The provided information does not contain specific forecast data or real-time National Weather Service monitoring for October 12-14, 2026, to ascertain whether these precise conditions would be observed or predicted during that period for an October 15 event. Furthermore, a retrieved NWS San Diego page describing Santa Ana winds on October 15, 2026, would not constitute evidence available during the requested October 12–14 lead window [4].
Sources (4)
  1. 1INTRODUCTION SOME CHARACTERISTICS ASSOCIATED WITH OFFSHORE WIND EVENTS A WIND POTENTIAL INDEX (PRELIMINARY)weather.gov
  2. 2Ivory J. Small National Weather Service Forecast Office Oxnard, Californiaweather.gov
  3. 3Forecast Skill of Synoptic Conditions Associated with Santa Ana Winds in Southern Californiafs.usda.gov
  4. 4San Diego, CAweather.gov

7. How does the National Weather Service's forecast of 88–90°F for October 15, 2026, compare to the historical distribution of actual maximum temperatures recorded on that date since 1990?

NWS forecast Oct 15, 202688–90°F [1][2]
Above normal high for Oct 159–11°F above 79°F [3]
Market probability for 89-90°F (Oct 15, 2026)Up to 37% [4]
The National Weather Service forecasts unusually warm conditions for October 15, 2026. The National Weather Service (NWS) predicts maximum temperatures of approximately 88–90°F for October 15, 2026 [1][2]. Specifically, 90°F is forecast near East Los Angeles and 88°F near San Fernando [1][2]. This forecast indicates conditions 9–11°F above the long-term normal high of 79°F for that date. However, it remains below the station record of 102°F, which was set in 1961 [3].
Direct historical comparison is not currently feasible, though market sentiment predicts warmth. A direct comparison of the NWS 88–90°F forecast to the historical distribution of actual maximum temperatures recorded on October 15 since 1990 is not possible with the information retrieved [5]. While the official Los Angeles International Airport/NOAA series is the appropriate source for historical data, the NOAA's NCEI Past Weather Tool search results did not expose the individual October 15 values from 1990–2025 [5]. Nevertheless, prediction market sentiment for October 15, 2026, places substantial probabilities on the 87–88°F and 89–90°F temperature ranges [6][4]. For instance, one market reported a 37% chance for 89–90°F and 31% for 87–88°F, while another indicated a 40% chance for 87–88°F and 22% for 89–90°F [6][4]. These figures reflect that market participants generally anticipate warmer-than-normal conditions.
Sources (6)
  1. 17-Day Forecast 34.05N 118.25W - National Weather Serviceforecast.weather.gov
  2. 27-Day Forecast 34.29N 118.49W - National Weather Serviceforecast.weather.gov
  3. 3Daily Normal Temperatures & Records - Los Angeles Almanaclaalmanac.com
  4. 4Los Angeles Weather on Oct 15, 2026 | Prediction Market Forecastpredictmarketcap.com
  5. 5NCEI Past Weather Tool - Drought.govdrought.gov
  6. 6Highest temperature in Los Angeles on Oct 15, 2026?… | Frenzy Capitalfrenzycap.com

8. How do the implied temperature probabilities on Kalshi for October 15, 2026, compare with the ensemble forecasts from major global weather models like the ECMWF (European) and GFS (American)?

Market resolution pointKLAX maximum temperature (NOAA hourly data) [1][2][3]
Frenzy Capital 87-88F probability40% [1][2]
PredictMarketCap 89-90F probability37% [1][2]
A direct comparison of Kalshi probabilities with global weather models is not feasible. A quantitative assessment between the implied temperature probabilities on Kalshi for October 15, 2026, and ensemble forecasts from major global weather models like ECMWF and GFS is currently not possible. This limitation stems from the unavailability of publicly retrievable ensemble-member distributions for the specified date and location (KLAX), preventing a responsible model-versus-market comparison using the available evidence [1][2][3].
Kalshi market probabilities for October 15, 2026, are concentrated in the upper-80s. The Kalshi market's probability mass for October 15, 2026, at KLAX is primarily concentrated in the upper-80s to approximately 90°F. However, different Kalshi-tracking pages present varied snapshots of these probabilities. For instance, Frenzy Capital indicates a 40% probability for 87–88°F and 22% for 89–90°F [1]. Conversely, PredictMarketCap reports 37% for 89–90°F and 31% for 87–88°F [2]. When combining the 85–90°F bins, Frenzy Capital’s snapshot shows 82%, while PredictMarketCap’s shows 78% [1][2]. There is also a substantial disagreement regarding probabilities above 90°F, with Frenzy Capital showing 6% and PredictMarketCap showing 27% [1][2][3]. The market resolves based on the observed maximum temperature at Los Angeles International Airport (KLAX), utilizing NOAA hourly data as the intended resolution source [1][2][3].
Sources (3)
  1. 1Highest temperature in Los Angeles on Oct 15, 2026?… | Frenzy Capitalfrenzycap.com
  2. 2Los Angeles Weather on Oct 15, 2026 | Prediction Market Forecastpredictmarketcap.com
  3. 3Highest temperature in Los Angeles on October 15? - Comparez les cotes Polymarket vs Kalshi | CoinRithmcoinrithm.com

9. What is the official NOAA/NWS data source used to determine the daily maximum temperature for Los Angeles, and what is the precise publication time for the October 15, 2026 report?

Official Daily Max Temp SourceNWS Los Angeles/Oxnard Daily Climate Report (product CLI), station LAX/KLAX (Los Angeles International Airport) [1][2]
Market Observation SourceKLAX hourly time-series page, daily highest Temp-column reading [3]
Report Publication Time (for Oct 14 max)1:40 AM PDT THU OCT 15 2026 [1]
The official NOAA/NWS source for Los Angeles maximum temperature is the Daily Climate Report. The National Weather Service (NWS) Los Angeles/Oxnard Daily Climate Report (product CLI), specifically from station LAX/KLAX at Los Angeles International Airport, serves as the official NOAA/NWS data source for the daily maximum temperature in Los Angeles [1][2]. This report is designated by the NWS climate portal as the Daily Climate Report, with data noted as preliminary, and is considered the authoritative station report [1][2]. For prediction markets, the relevant NOAA/NWS data for the October 15 observation is found on the KLAX hourly time-series page, specifically its daily highest Temp-column reading, aligning with market documentation that refers to NOAA's Los Angeles International Airport observations [3][4].
Precise publication time for the October 15, 2026 maximum temperature is unavailable. The precise publication time for a report containing the October 15, 2026 daily maximum temperature is not available within the provided facts. An NWS report issued at 1:40 AM PDT on Thursday, October 15, 2026, covered the prior day's October 14 maximum, rather than the eventual October 15 daily maximum [1]. Additionally, other secondary summaries, such as the NWS CF6 Preliminary Local Climatological Data product for LAX, did not yet provide a finalized October 15 daily maximum, as its data extended only through October 14 as of the search results [5][6].
Sources (6)
  1. 1Climatological Report (Daily) - National Weather Serviceforecast.weather.gov
  2. 2Climate - National Weather Serviceweather.gov
  3. 3Los Angeles, Los Angeles International Airportweather.gov
  4. 4Highest temperature in Los Angeles on October 15? - Compara cuotas de Polymarket y Kalshi | CoinRithmcoinrithm.com
  5. 5National Weather Serviceforecast.weather.gov
  6. 6WFO Monthly/Daily Climate Data - National Weather Serviceforecast.weather.gov

10. How do the temperature forecasts from the National Weather Service for Downtown Los Angeles (KCQT) historically differ from those for Los Angeles International Airport (KLAX) during mid-October heatwaves?

Historical KLAX ModerationOften moderated by marine influence during mid-October offshore-flow heat events [1][2]
Oct 15, 2026 KLAX ConditionNo marine layer or inversion, reducing usual coastal moderation [1][2]
Oct 15, 2026 Forecast HighsMid-80s to lower 90s for both Downtown L.A. and LAX areas [1][2][3]
Historically, National Weather Service (NWS) forecasts show Downtown L.A. warms more than LAX. During mid-October offshore-flow heat events, Downtown Los Angeles (KCQT) and inland-coast locations typically experience strong warming, while Los Angeles International Airport (KLAX) is usually moderated by marine influence [1][2]. However, for the heatwave on October 15, 2026, the NWS reported an absence of a marine layer or inversion at KLAX, which significantly reduced the typical coastal-moderation difference observed between the two locations [1][2].
The NWS zoned forecasts for both areas were similar for this event. For the October 15, 2026 heatwave, NWS Los Angeles/Oxnard grouped the KCQT area (inland coast/Downtown L.A.) and Los Angeles County beaches, including KLAX (beaches/LAX), into separate forecast zones [1][2][3]. The zone forecast products indicated that both areas would experience sunny conditions with high temperatures ranging from the mid-80s to lower 90s [1][2][3]. The cited NWS products did not publish a station-specific numerical split between KCQT and KLAX [1][2][3].
Santa Ana conditions signaled unusually high temperatures for both sites. This heatwave was associated with Santa Ana/offshore flow, with the NWS describing significant warming and expecting widespread temperatures of 85-95°F, anticipating the warmest conditions near the coast [2][4][3]. The NWS signal for October 15 indicated that both sites were forecast to be unusually hot, with the cited NWS products supporting a broad high-80s-to-low-90s range rather than a specific numerical adjustment between KCQT and KLAX [1][2]. The reported absence of a marine layer or inversion at KLAX suggested that KLAX could approach inland-coast temperatures during this event [1][2].
Sources (4)
  1. 1National Weather Serviceforecast.weather.gov
  2. 2National Weather Serviceforecast.weather.gov
  3. 3National Weather Serviceforecast.weather.gov
  4. 4National Weather Serviceforecast.weather.gov

11. What Could Change the Odds

Key Catalysts

Key bullish catalysts for an above-normal Los Angeles temperature outcome on October 15, 2026, include an active National Weather Service (NWS) Heat Advisory, sunny skies, and north/downsloping winds [1][2][3][4]. Temperatures were expected to run roughly 10 15F above normal [1][2][3][4]. The NWS anticipated additional warming into Friday, October 16, with many coastal and valley locations forecast in the upper 80s to 90s, and some areas potentially reaching 100F [1][2][5][3][4]. The heat advisory was expected to begin around 10:00 AM PDT on Thursday, October 15, with peak heating occurring in the afternoon [1][2][5][3][4].
Downside catalysts for October 15 were limited, with a uniformly sunny forecast and near-zero precipitation risk [1][2][5][3][4][6]. However, settlement variance for the Los Angeles International Airport (KLAX) contract could result from station choice, coastal marine influence, wind timing, and the distinction between downtown Los Angeles and KLAX readings [1][2][5][3][4][6]. A later-than-expected sea breeze or weaker downsloping flow would favor lower temperature brackets [1][2][5][3][4][6]. The KLAX contract settles on the Weather Underground daily high for October 15, 2026 [4][7][8][9][10]. Intraday forecasts for the Los Angeles area clustered between 85 91F; the NWS Los Angeles International Airport forecast was 85F, and Weather Underground also forecast approximately 85F for KLAX [1][5][4][6][7]. Market prices were available at >86F for 69, >87F for 39, and >88F for 20 [4][7].

Key Dates & Catalysts

  • Strike Date: October 16, 2026
  • Expiration: October 22, 2026
  • Closes: October 16, 2026
Sources (10)
  1. 1National Weather Serviceforecast.weather.gov
  2. 2National Weather Serviceforecast.weather.gov
  3. 3National Weather Serviceforecast.weather.gov
  4. 47-Day Forecast 33.94N 118.42W - National Weather Serviceforecast.weather.gov
  5. 5National Weather Serviceforecast.weather.gov
  6. 6Los Angeles, CA Hourly Weather Forecast | Weather Undergroundwunderground.com
  7. 7October 15, 2026: Los Angeles Daily Temperature High October 15 2026 Prediction Marketrobinhood.com
  8. 8Highest temperature in Los Angeles on October 15?polymarket.com
  9. 9Kalshi Los Angeles Weather Markets — Temperature & Rain Oddspredictionpilot.io
  10. 10Weather Prediction Markets & Live Odds 2026 | Polymarketpolymarket.com

13. Historical Resolutions

Historical Resolutions: 20 markets in this series

Outcomes: 3 resolved YES, 17 resolved NO

Recent resolutions:

  • KXHIGHLAX-26OCT14-T79: YES (Oct 15, 2026)
  • KXHIGHLAX-26OCT14-T72: NO (Oct 15, 2026)
  • KXHIGHLAX-26OCT14-B78.5: NO (Oct 15, 2026)
  • KXHIGHLAX-26OCT14-B76.5: NO (Oct 15, 2026)
  • KXHIGHLAX-26OCT14-B74.5: NO (Oct 15, 2026)