Charleston, SCHigh ≥ 73°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.
AIFS +49.85u · HRES −49.85u
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 ↓ |
|---|---|---|---|---|---|
| AIFS Single | 81% | 76.5°F | 4.6°F | 2026-10-15 06:00 | Pending |
| WeatherNext 2 | 60% | 73.4°F | 3.7°F | 2026-10-15 00:00 | Pending |
| NWS forecast | 54% | 73.0°F | 4.5°F | 2026-10-15 03:00 | Pending |
| National Blend | 46% | 72.0°F | 5.6°F | 2026-10-15 06:00 | Pending |
| ICON | 37% | 70.9°F | 4.9°F | 2026-10-15 00:00 | Pending |
| IFS Ensemble | 25% | 69.4°F | 4.6°F | 2026-10-15 00:00 | Pending |
| IFS HRES | 20% | 68.2°F | 5.0°F | 2026-10-15 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 ≥ 73°F · KCHS
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-KCHS-20261019-TMAX-GE73
Opened Oct 12 · 07:47 UTC
Original listing: Charleston high ≥ 73°F · Mon Oct 19
Original prop, full history & receipt ↗