St. Louis, MOHigh ≥ 64°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 EXECUTED100 contracts at the midpoint of these model probabilities. Each contract pays 1u to the winning side.
EPS +57.80u · WN2 −57.80u
These are current forecast comparisons, not locked entries. No credits have been committed. Read the proposed policy →
Probability history
Recorded source probabilities; timestamps mark snapshots. Repeated values may come from the same model run.
Forecasts & evidence
| MODEL | YES | MEAN | SPREAD σ | INITIALIZATION UTC | BRIER ↓ |
|---|---|---|---|---|---|
| IFS Ensemble | 69% | 66.5°F | 5.9°F | 2026-10-11 00:00 | 0.4816 |
| NWS forecast | 53% | 64.0°F | 5.8°F | 2026-10-11 02:00 | 0.2852 |
| IFS HRES | 51% | 63.6°F | 6.6°F | 2026-10-11 00:00 | 0.2560 |
| ICON | 35% | 59.7°F | 9.8°F | 2026-10-10 12:00 | 0.1225 |
| National Blend | 35% | 60.0°F | 8.9°F | 2026-10-11 06:00 | 0.1204 |
| AIFS Single | 24% | 59.8°F | 5.3°F | 2026-10-11 06:00 | 0.0586 |
| WeatherNext 2 | 15% | 58.8°F | 4.5°F | 2026-10-11 00:00 | 0.0225 |
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 ≥ 64°F · KSTL
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-KSTL-20261017-TMAX-GE64
Opened Oct 11 · 03:45 UTC
Original listing: St. Louis high ≥ 64°F · Sat Oct 17
Original prop, full history & receipt ↗