Houston, TXHigh ≥ 90°F
Who takes which side?
Probabilities derived from each source’s mean and spread. Forecasts may have different initialization times.
Head-to-head preview
ILLUSTRATIVE · NOT EXECUTED50 contracts at the midpoint of these model probabilities. Each contract pays 1u to the winning side.
ICON +40.25u · EPS −40.25u
These are current forecast comparisons, not locked entries. No credits have been committed. Read the proposed policy →
Probability history
Reconstructed from archived summary forecasts using a shared lead-dependent Gaussian error model. Times are initializations, not verified release times.
Forecasts & evidence
| MODEL | YES | MEAN | SPREAD σ | INITIALIZATION UTC | BRIER ↓ |
|---|---|---|---|---|---|
| National Blend | 33% | 89.0°F | 1.1°F | 2026-10-19 06:00 | Pending |
| ICON | 27% | 85.8°F | 6.1°F | 2026-10-19 00:00 | Pending |
| NWS forecast | 25% | 86.0°F | 5.2°F | 2026-10-19 03:00 | Pending |
| IFS HRES | 24% | 85.5°F | 5.8°F | 2026-10-19 00:00 | Pending |
| AIFS Single | 20% | 85.3°F | 5.0°F | 2026-10-19 00:00 | Pending |
| WeatherNext 2 | 16% | 85.5°F | 4.1°F | 2026-10-19 00:00 | Pending |
| IFS Ensemble | 12% | 87.0°F | 2.1°F | 2026-10-19 00:00 | Pending |
Spread is the standard deviation used in the probability approximation. It is not a measured confidence rating. Brier here scores the latest recorded snapshot, not a league deadline.
High ≥ 90°F · KIAH
Daily temperature props settle on the ACIS official station record. Inclusive and strict thresholds retain their exact meanings. Provisional observations do not replace the settlement record.
WP-KIAH-20261024-TMAX-GE90
Opened Oct 17 · 07:44 UTC
Original listing: A 90° day in Houston · Sat Oct 24
Original prop, full history & receipt ↗