Chicago, ILHigh ≥ 60°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 +36.65u · HRES −36.65u
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 | 84% | 66.1°F | 6.7°F | 2026-10-12 00:00 | 0.7022 |
| ICON | 73% | 62.4°F | 4.8°F | 2026-10-12 00:00 | 0.5285 |
| WeatherNext 2 | 68% | 61.3°F | 3.7°F | 2026-10-12 00:00 | 0.4692 |
| AIFS Single | 57% | 60.3°F | 4.6°F | 2026-10-12 06:00 | 0.3238 |
| NWS forecast | 55% | 60.0°F | 4.5°F | 2026-10-12 02:00 | 0.2970 |
| IFS HRES | 43% | 58.6°F | 5.0°F | 2026-10-12 00:00 | 0.1840 |
| National Blend | 40% | 58.0°F | 5.6°F | 2026-10-12 06:00 | 0.1560 |
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 ≥ 60°F · KORD
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-KORD-20261016-TMAX-GE60
Opened Oct 12 · 04:01 UTC
Original listing: Chicago high ≥ 60°F · Fri Oct 16
Original prop, full history & receipt ↗