
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.
Photo: Alek Leckszas · CC BY-SA 4.0 · Wikimedia Commons
87° to 88° · pbe-weather-maxtemp@1.1.0 · 23:01 UTC → 05:01 UTC
Highest temperature in Los Angeles on Oct 8, 2026?
87° to 88° · RESOLVED
- UPDATE · Oct 8 17:04Z PBE 11% pbe-weather-maxtemp-intraday@2.1.0 · data cutoff Oct 8 17:00Z
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.
| Input | Before | After | Primary |
|---|---|---|---|
| Guidance lead time | 14h | 8h | — |
| GFS MOS forecast high | 83°F | 85°F | yes |
| National Blend of Models forecast high | 87°F | 86°F | yes |
This page reports which stored inputs differ between two immutable forecasts. It does not claim why the underlying weather guidance changed.
The forecast path
Data table
| Time (UTC) | Source | Value % |
|---|---|---|
| Oct 7 14:02Z | PBE pbe-weather-maxtemp@1.1.0 | 36 |
| Oct 7 14:02Z | Kalshi mid | 10 |
| Oct 7 14:04Z | Kalshi mid | 8 |
| Oct 7 14:08Z | Kalshi mid | 8 |
| Oct 7 14:12Z | Kalshi mid | 9 |
| Oct 7 14:54Z | Kalshi mid | 9 |
| Oct 7 15:00Z | Kalshi mid | 9 |
| Oct 7 15:06Z | Kalshi mid | 10 |
| Oct 7 15:08Z | Kalshi mid | 13 |
| Oct 7 15:10Z | Kalshi mid | 14 |
| Oct 7 15:16Z | Kalshi mid | 11 |
| Oct 7 15:18Z | Kalshi mid | 11 |
| Oct 7 15:46Z | Kalshi mid | 12 |
| Oct 7 15:50Z | Kalshi mid | 12 |
| Oct 7 15:54Z | Kalshi mid | 11 |
| Oct 7 15:58Z | Kalshi mid | 10 |
| Oct 7 16:00Z | Kalshi mid | 10 |
| Oct 7 16:08Z | Kalshi mid | 10 |
| Oct 7 16:18Z | Kalshi mid | 10 |
| Oct 7 16:20Z | Kalshi mid | 9 |
| Oct 7 16:22Z | Kalshi mid | 10 |
| Oct 7 16:34Z | Kalshi mid | 9 |
| Oct 7 16:44Z | Kalshi mid | 9 |
| Oct 7 16:54Z | Kalshi mid | 9 |
| Oct 7 16:58Z | Kalshi mid | 9 |
| Oct 7 17:00Z | PBE pbe-weather-maxtemp@1.1.0 | 16 |
| Oct 7 17:00Z | Kalshi mid | 9 |
| Oct 7 17:02Z | Kalshi mid | 9 |
| Oct 7 17:04Z | Kalshi mid | 9 |
| Oct 7 17:10Z | Kalshi mid | 9 |
| Oct 7 17:30Z | Kalshi mid | 9 |
| Oct 7 18:00Z | Kalshi mid | 9 |
| Oct 7 18:04Z | Kalshi mid | 9 |
| Oct 7 19:00Z | Kalshi mid | 9 |
| Oct 7 19:04Z | Kalshi mid | 9 |
| Oct 7 19:28Z | Kalshi mid | 8 |
| Oct 7 19:32Z | Kalshi mid | 7 |
| Oct 7 19:46Z | Kalshi mid | 6 |
| Oct 7 19:50Z | Kalshi mid | 6 |
| Oct 7 20:00Z | Kalshi mid | 6 |
| Oct 7 20:14Z | Kalshi mid | 6 |
| Oct 7 20:38Z | Kalshi mid | 5 |
| Oct 7 21:00Z | Kalshi mid | 6 |
| Oct 7 21:06Z | Kalshi mid | 5 |
| Oct 7 21:08Z | Kalshi mid | 5 |
| Oct 7 21:12Z | Kalshi mid | 4 |
| Oct 7 21:28Z | Kalshi mid | 4 |
| Oct 7 21:32Z | Kalshi mid | 4 |
| Oct 7 21:50Z | Kalshi mid | 4 |
| Oct 7 22:00Z | Kalshi mid | 4 |
| Oct 7 22:13Z | Kalshi mid | 5 |
| Oct 7 22:17Z | Kalshi mid | 4 |
| Oct 7 22:19Z | Kalshi mid | 4 |
| Oct 7 22:51Z | Kalshi mid | 4 |
| Oct 7 23:01Z | PBE pbe-weather-maxtemp@1.1.0 | 36 |
| Oct 7 23:01Z | Kalshi mid | 4 |
| Oct 8 00:02Z | Kalshi mid | 4 |
| Oct 8 00:17Z | Kalshi mid | 4 |
| Oct 8 00:29Z | Kalshi mid | 4 |
| Oct 8 01:02Z | Kalshi mid | 4 |
| Oct 8 01:09Z | Kalshi mid | 4 |
| Oct 8 01:35Z | Kalshi mid | 3 |
| Oct 8 01:37Z | Kalshi mid | 3 |
| Oct 8 01:41Z | Kalshi mid | 3 |
| Oct 8 01:45Z | Kalshi mid | 5 |
| Oct 8 01:51Z | Kalshi mid | 5 |
| Oct 8 02:02Z | Kalshi mid | 5 |
| Oct 8 02:13Z | Kalshi mid | 4 |
| Oct 8 02:15Z | Kalshi mid | 4 |
| Oct 8 02:41Z | Kalshi mid | 4 |
| Oct 8 03:01Z | Kalshi mid | 4 |
| Oct 8 03:19Z | Kalshi mid | 4 |
| Oct 8 03:25Z | Kalshi mid | 4 |
| Oct 8 03:35Z | Kalshi mid | 4 |
| Oct 8 03:37Z | Kalshi mid | 4 |
| Oct 8 03:47Z | Kalshi mid | 3 |
| Oct 8 03:49Z | Kalshi mid | 3 |
| Oct 8 03:51Z | Kalshi mid | 3 |
| Oct 8 03:57Z | Kalshi mid | 3 |
| Oct 8 04:01Z | Kalshi mid | 3 |
| Oct 8 04:03Z | Kalshi mid | 3 |
| Oct 8 04:07Z | Kalshi mid | 3 |
| Oct 8 04:09Z | Kalshi mid | 4 |
| Oct 8 04:11Z | Kalshi mid | 4 |
| Oct 8 04:25Z | Kalshi mid | 4 |
| Oct 8 05:01Z | PBE pbe-weather-maxtemp@1.1.0 | 25 |
| Oct 8 05:01Z | Kalshi mid | 4 |
The Kalshi mid captured with each snapshot went from 4% to 4%.
The two snapshots
| Earlier | Later | |
|---|---|---|
| Captured | Oct 7 23:01Z | Oct 8 05:01Z |
| Data cutoff | Oct 7 23:00Z | Oct 8 05:00Z |
| Guidance runs | NWS GFS MOS 2026-10-07T18Z, NWS National Blend of Models 2026-10-07T18Z | NWS GFS MOS 2026-10-08T00Z, NWS National Blend of Models 2026-10-08T00Z |
| PBE | 36% | 25% |
| Market at capture | 4% | 4% |
Evidence & method
What this story is based on. Every value above was read from these immutable records.
- 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
- 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
- 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.