Tucson, AZHigh ≥ 83°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 +31.05u · HRES −31.05u
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 | 87% | 87.4°F | 4.3°F | 2026-10-10 00:00 | 0.0161 |
| WeatherNext 2 | 84% | 87.7°F | 5.3°F | 2026-10-10 18:00 | 0.0266 |
| AIFS Single | 77% | 86.6°F | 5.6°F | 2026-10-11 00:00 | 0.0534 |
| National Blend | 54% | 83.0°F | 5.5°F | 2026-10-11 00:00 | 0.2153 |
| IFS HRES | 51% | 82.6°F | 6.3°F | 2026-10-11 00:00 | 0.2440 |
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 ≥ 83°F · KTUS
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-KTUS-20261018-TMAX-GE83
Opened Oct 11 · 07:32 UTC
Original listing: Tucson high ≥ 83°F · Sun Oct 18
Original prop, full history & receipt ↗