Denver, COHigh ≥ 77°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 +79.35u · WN2 −79.35u
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 ↓ |
|---|---|---|---|---|---|
| IFS Ensemble | 40% | 74.6°F | 7.8°F | 2026-10-17 00:00 | Pending |
| National Blend | 6% | 63.0°F | 8.9°F | 2026-10-18 00:00 | Pending |
| IFS HRES | 4% | 64.5°F | 6.6°F | 2026-10-18 00:00 | Pending |
| NWS forecast | 2% | 64.0°F | 5.9°F | 2026-10-18 03:00 | Pending |
| AIFS Single | 1% | 64.6°F | 5.4°F | 2026-10-18 00:00 | Pending |
| ICON | 1% | 60.3°F | 7.2°F | 2026-10-18 00:00 | Pending |
| WeatherNext 2 | <1% | 64.4°F | 5.1°F | 2026-10-17 18:00 | 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 ≥ 77°F · KDEN
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-KDEN-20261024-TMAX-GE77
Opened Oct 17 · 13:47 UTC
Original listing: Denver runs hot-for-here: 77°F+ · Sat Oct 24
Original prop, full history & receipt ↗