Atlanta, GAHigh ≥ 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.
AIFS +45.00u · ICON −45.00u
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 | 19% | 86.0°F | 4.0°F | 2026-10-15 18:00 | 0.0353 |
| WeatherNext 2 | 8% | 85.5°F | 2.9°F | 2026-10-15 12:00 | 0.0072 |
| IFS HRES | 7% | 84.1°F | 3.7°F | 2026-10-15 12:00 | 0.0053 |
| NWS forecast | 4% | 84.0°F | 3.1°F | 2026-10-15 15:00 | 0.0014 |
| IFS Ensemble | 4% | 84.6°F | 2.7°F | 2026-10-15 00:00 | 0.0014 |
| National Blend | 2% | 83.0°F | 3.3°F | 2026-10-15 06:00 | 0.0006 |
| ICON | 1% | 81.5°F | 3.5°F | 2026-10-15 12:00 | 0.0001 |
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 · KATL
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-KATL-20261016-TMAX-GE90
Opened Oct 09 · 07:50 UTC
Original listing: A 90° day in Atlanta · Fri Oct 16
Original prop, full history & receipt ↗