Memphis, TNHigh ≥ 91°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.
ICON +17.05u · HRES −17.05u
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 ↓ |
|---|---|---|---|---|---|
| ICON | 95% | 96.2°F | 3.5°F | 2026-09-29 00:00 | 0.0028 |
| IFS Ensemble | 85% | 92.9°F | 2.3°F | 2026-09-29 00:00 | 0.0234 |
| WeatherNext 2 | 80% | 93.6°F | 3.7°F | 2026-09-28 18:00 | 0.0404 |
| AIFS Single | 79% | 93.9°F | 4.2°F | 2026-09-29 06:00 | 0.0428 |
| IFS HRES | 71% | 92.8°F | 4.1°F | 2026-09-29 00:00 | 0.0829 |
| National Blend | 67% | 91.9°F | 3.2°F | 2026-09-29 06:00 | 0.1102 |
| NWS forecast | 56% | 91.0°F | 3.4°F | 2026-09-29 03:00 | 0.1954 |
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 ≥ 91°F · KMEM
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-KMEM-20261001-TMAX-GE91
Opened Sep 28 · 03:27 UTC
Original listing: Memphis high ≥ 91°F · Thu Oct 1
Original prop, full history & receipt ↗