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Los Angeles — photograph (Photo: Alek Leckszas · CC BY-SA 4.0 · via Wikimedia Commons)
WEATHER · FORECAST CHANGE

Highest temperature in Los Angeles on Oct 8, 2026: PBE moves “87° to 88°” down to 25% from 36%

New forecast guidance reached the model between 23:01 UTC and 05:01 UTC on Oct 8. Same model version, later data cutoff: here is exactly which inputs changed.

Published Model data as of Oct 8 05:00ZBy the PropBetEdge Predictions Desk1 min read

Photo: Alek Leckszas · CC BY-SA 4.0 · Wikimedia Commons

36%25%

87° to 88° · pbe-weather-maxtemp@1.1.0 · 23:01 UTC → 05:01 UTC

Move−11 pts
Market at capture4%
Inputs changed2primary
LIVE UPDATE · not part of the original story

Highest temperature in Los Angeles on Oct 8, 2026?

87° to 88° · RESOLVED

PBE · live intraday2%−23 pts since publication
KalshiNo two-sided quote
GapNo comparable quote

At KLAX: high so far 80.6°F · latest 69.8°F () · STALE

RESEARCH PBE Oct 8 22:19Z · market

  1. UPDATE · Oct 8 17:04Z PBE 11% pbe-weather-maxtemp-intraday@2.1.0 · data cutoff Oct 8 17:00Z
Open the live forecast →

Quick read

  • pbe-weather-maxtemp@1.1.0 moved “87° to 88°” from 36% to 25% (−11 pts).
  • Later data cutoff: Oct 7 23:00Z → Oct 8 05:00Z; same model version, so the move reflects inputs, not a model change.
  • Primary inputs changed: GFS MOS forecast high, National Blend of Models forecast high.
  • The Kalshi mid captured with each snapshot went from 4% to 4%.

What changed in the inputs

Between the snapshot captured at Oct 7 23:01Z (data cutoff Oct 7 23:00Z) and the one at Oct 8 05:01Z (cutoff Oct 8 05:00Z), the same model version — pbe-weather-maxtemp@1.1.0 — moved “87° to 88°” from 36% to 25%. The model inputs that changed: GFS MOS forecast high from 83°F to 85°F; National Blend of Models forecast high from 87°F to 86°F.

EVIDENCEStored model inputs, before and afterFrom the immutable feature snapshots attached to each forecast
InputBeforeAfterPrimary
Guidance lead time14h8h—
GFS MOS forecast high83°F85°Fyes
National Blend of Models forecast high87°F86°Fyes
Units: as labeledAs of Oct 8 05:01ZSource: PBE feature snapshots

This page reports which stored inputs differ between two immutable forecasts. It does not claim why the underlying weather guidance changed.

The forecast path

PROBABILITY HISTORY“87° to 88°”: pbe-weather-maxtemp@1.1.0 snapshots vs the marketSame model version only; the dashed line is the stored Kalshi mid
0%25%50%75%100%Oct 7 14:02ZOct 7 21:31ZOct 8 05:01Z36%25%PBE pbe-weather-maxtemp@1.1.0 snapshots 36% · Oct 7 14:02ZPBE pbe-weather-maxtemp@1.1.0 snapshots 16% · Oct 7 17:00ZPBE pbe-weather-maxtemp@1.1.0 snapshots 36% · Oct 7 23:01ZPBE pbe-weather-maxtemp@1.1.0 snapshots 25% · Oct 8 05:01Z
Kalshi mid (stored observations)PBE pbe-weather-maxtemp@1.1.0 snapshots
Units: % probabilityAs of Oct 8 05:01ZSource: PBE forecast archive; Kalshi
Data table
Time (UTC)SourceValue %
Oct 7 14:02ZPBE pbe-weather-maxtemp@1.1.036
Oct 7 14:02ZKalshi mid10
Oct 7 14:04ZKalshi mid8
Oct 7 14:08ZKalshi mid8
Oct 7 14:12ZKalshi mid9
Oct 7 14:54ZKalshi mid9
Oct 7 15:00ZKalshi mid9
Oct 7 15:06ZKalshi mid10
Oct 7 15:08ZKalshi mid13
Oct 7 15:10ZKalshi mid14
Oct 7 15:16ZKalshi mid11
Oct 7 15:18ZKalshi mid11
Oct 7 15:46ZKalshi mid12
Oct 7 15:50ZKalshi mid12
Oct 7 15:54ZKalshi mid11
Oct 7 15:58ZKalshi mid10
Oct 7 16:00ZKalshi mid10
Oct 7 16:08ZKalshi mid10
Oct 7 16:18ZKalshi mid10
Oct 7 16:20ZKalshi mid9
Oct 7 16:22ZKalshi mid10
Oct 7 16:34ZKalshi mid9
Oct 7 16:44ZKalshi mid9
Oct 7 16:54ZKalshi mid9
Oct 7 16:58ZKalshi mid9
Oct 7 17:00ZPBE pbe-weather-maxtemp@1.1.016
Oct 7 17:00ZKalshi mid9
Oct 7 17:02ZKalshi mid9
Oct 7 17:04ZKalshi mid9
Oct 7 17:10ZKalshi mid9
Oct 7 17:30ZKalshi mid9
Oct 7 18:00ZKalshi mid9
Oct 7 18:04ZKalshi mid9
Oct 7 19:00ZKalshi mid9
Oct 7 19:04ZKalshi mid9
Oct 7 19:28ZKalshi mid8
Oct 7 19:32ZKalshi mid7
Oct 7 19:46ZKalshi mid6
Oct 7 19:50ZKalshi mid6
Oct 7 20:00ZKalshi mid6
Oct 7 20:14ZKalshi mid6
Oct 7 20:38ZKalshi mid5
Oct 7 21:00ZKalshi mid6
Oct 7 21:06ZKalshi mid5
Oct 7 21:08ZKalshi mid5
Oct 7 21:12ZKalshi mid4
Oct 7 21:28ZKalshi mid4
Oct 7 21:32ZKalshi mid4
Oct 7 21:50ZKalshi mid4
Oct 7 22:00ZKalshi mid4
Oct 7 22:13ZKalshi mid5
Oct 7 22:17ZKalshi mid4
Oct 7 22:19ZKalshi mid4
Oct 7 22:51ZKalshi mid4
Oct 7 23:01ZPBE pbe-weather-maxtemp@1.1.036
Oct 7 23:01ZKalshi mid4
Oct 8 00:02ZKalshi mid4
Oct 8 00:17ZKalshi mid4
Oct 8 00:29ZKalshi mid4
Oct 8 01:02ZKalshi mid4
Oct 8 01:09ZKalshi mid4
Oct 8 01:35ZKalshi mid3
Oct 8 01:37ZKalshi mid3
Oct 8 01:41ZKalshi mid3
Oct 8 01:45ZKalshi mid5
Oct 8 01:51ZKalshi mid5
Oct 8 02:02ZKalshi mid5
Oct 8 02:13ZKalshi mid4
Oct 8 02:15ZKalshi mid4
Oct 8 02:41ZKalshi mid4
Oct 8 03:01ZKalshi mid4
Oct 8 03:19ZKalshi mid4
Oct 8 03:25ZKalshi mid4
Oct 8 03:35ZKalshi mid4
Oct 8 03:37ZKalshi mid4
Oct 8 03:47ZKalshi mid3
Oct 8 03:49ZKalshi mid3
Oct 8 03:51ZKalshi mid3
Oct 8 03:57ZKalshi mid3
Oct 8 04:01ZKalshi mid3
Oct 8 04:03ZKalshi mid3
Oct 8 04:07ZKalshi mid3
Oct 8 04:09ZKalshi mid4
Oct 8 04:11ZKalshi mid4
Oct 8 04:25ZKalshi mid4
Oct 8 05:01ZPBE pbe-weather-maxtemp@1.1.025
Oct 8 05:01ZKalshi mid4

The Kalshi mid captured with each snapshot went from 4% to 4%.

The two snapshots

EarlierLater
CapturedOct 7 23:01ZOct 8 05:01Z
Data cutoffOct 7 23:00ZOct 8 05:00Z
Guidance runsNWS GFS MOS 2026-10-07T18Z, NWS National Blend of Models 2026-10-07T18ZNWS GFS MOS 2026-10-08T00Z, NWS National Blend of Models 2026-10-08T00Z
PBE36%25%
Market at capture4%4%

Evidence & method

What this story is based on. Every value above was read from these immutable records.

87° to 88°
Model
pbe-weather-maxtemp@1.1.0 · RESEARCH
Snapshot
1bec0048-216f-4c08-b4bf-6f072ad3ce10
Compared with
0f94c488-6379-4358-b538-2fa14d632693
Captured
Oct 8 05:01Z
Data cutoff
Oct 8 05:00Z
Market observation
4% · captured with the snapshot
Source families
NOAA/NWS via Iowa Environmental Mesonet archive · NOAA Regional Climate Centers ACIS · NOAA/NWS api.weather.gov
RESOLUTION RULE
Resolves on
The Weather Company (weather.com/kalshi) — The Weather Company daily maximum temperature for CLILAX (weather.com/kalshi)
Independent check
NWS Daily Climate Report CLILAX (WFO LOX); NOAA RCC-ACIS USW00023174
Measurement
Maximum temperature for the climate day 2026-10-08, 00:00-24:00 local standard time (UTC-8)
Rounding
Whole degrees Fahrenheit as reported; preliminary values may differ by rounding/conversion
Exceptions
Preliminary data may be revised; the exchange may hold expiration until a non-erroneous revision, else last fair price
If the maximum temperature recorded at Los Angeles (CLILAX) for Oct 8, 2026, is between 87-88° fahrenheit according to The Weather Company, then the market resolves to Yes.
MODEL LIMITATIONS
  • Pre-window only; no current-conditions input
  • Guidance can run cold/hot in unusual regimes (see LA diagnostic, 2026-10-04)

Weather · daily high — inputs: National Blend of Models day max (GFS MOS fallback) + station empirical guidance-error tables. This model on the research board →

Market prices are a benchmark only and never enter a PropBetEdge model. Research-stage probabilities; not advice.