Highest temperature in Austin on Oct 29, 2026: PBE moves “83° to 84°” down to 22% from 32%
New forecast guidance reached the model between 14:00 UTC and 17:00 UTC on Oct 28. Same model version, later data cutoff: here is exactly which inputs changed.
Photo: Quintin Soloviev · CC BY 4.0 · Wikimedia Commons
83° to 84° · pbe-weather-maxtemp@1.1.0 · 14:00 UTC → 17:00 UTC
Highest temperature in Austin on Oct 29, 2026?
83° to 84° · PRE-WINDOW
Quick read
- pbe-weather-maxtemp@1.1.0 moved “83° to 84°” from 32% to 22% (−10 pts).
- Later data cutoff: Oct 28 11:00Z → Oct 28 17:00Z; same model version, so the move reflects inputs, not a model change.
- Primary inputs changed: National Blend spread, GFS MOS forecast high, National Blend of Models forecast high.
- A comparable market observation was not captured with both snapshots, so no market move is stated.
What changed in the inputs
Between the snapshot captured at Oct 28 14:00Z (data cutoff Oct 28 11:00Z) and the one at Oct 28 17:00Z (cutoff Oct 28 17:00Z), the same model version — pbe-weather-maxtemp@1.1.0 — moved “83° to 84°” from 32% to 22%. The model inputs that changed: National Blend spread from 3°F to 4°F; GFS MOS forecast high from 82°F to 77°F; National Blend of Models forecast high from 82°F to 81°F.
| Input | Before | After | Primary |
|---|---|---|---|
| Guidance lead time | 24h | 18h | — |
| National Blend spread | 3°F | 4°F | yes |
| GFS MOS forecast high | 82°F | 77°F | yes |
| National Blend of Models forecast high | 82°F | 81°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 28 14:00Z | PBE pbe-weather-maxtemp@1.1.0 | 32 |
| Oct 28 14:04Z | Kalshi mid | 13 |
| Oct 28 14:06Z | Kalshi mid | 8 |
| Oct 28 14:08Z | Kalshi mid | 5 |
| Oct 28 14:14Z | Kalshi mid | 4 |
| Oct 28 15:00Z | Kalshi mid | 4 |
| Oct 28 15:22Z | Kalshi mid | 4 |
| Oct 28 16:00Z | Kalshi mid | 4 |
| Oct 28 17:00Z | PBE pbe-weather-maxtemp@1.1.0 | 22 |
| Oct 28 17:00Z | Kalshi mid | 4 |
A comparable market observation was not captured with both snapshots, so no market move is stated.
The two snapshots
| Earlier | Later | |
|---|---|---|
| Captured | Oct 28 14:00Z | Oct 28 17:00Z |
| Data cutoff | Oct 28 11:00Z | Oct 28 17:00Z |
| Guidance runs | NWS GFS MOS 2026-10-28T06Z, NWS National Blend of Models 2026-10-28T06Z | NWS GFS MOS 2026-10-28T12Z, NWS National Blend of Models 2026-10-28T12Z |
| PBE | 32% | 22% |
| Market at capture | — | 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
- 9198c15e-19a7-4fd8-a9e4-e12fbaf7d72d
- Compared with
- c8f03471-392e-46c5-9cea-44cd33ec3001
- Captured
- Oct 28 17:00Z
- Data cutoff
- Oct 28 17:00Z
- 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 CLIAUS (weather.com/kalshi)
- Independent check
- NWS Daily Climate Report CLIAUS (WFO EWX); NOAA RCC-ACIS USW00013904
- Measurement
- Maximum temperature for the climate day 2026-10-29, 00:00-24:00 local standard time (UTC-6)
- 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.