Los Angeles, CAHigh ≥ 71°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 +3.33u · HRES −3.33u
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 | >99% | 83.6°F | 4.3°F | 2026-10-17 18:00 | Pending |
| ICON | >99% | 81.8°F | 4.0°F | 2026-10-17 12:00 | Pending |
| IFS Ensemble | 96% | 78.9°F | 4.6°F | 2026-10-17 00:00 | Pending |
| WeatherNext 2 | 93% | 75.5°F | 3.4°F | 2026-10-17 12:00 | Pending |
| IFS HRES | 87% | 75.5°F | 4.5°F | 2026-10-17 12:00 | Pending |
| NWS forecast | 55% | 71.0°F | 3.9°F | 2026-10-17 14:00 | Pending |
| National Blend | 55% | 71.0°F | 4.4°F | 2026-10-17 06:00 | 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 ≥ 71°F · KLAX
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-KLAX-20261020-TMAX-GE71
Opened Oct 16 · 04:25 UTC
Original listing: Los Angeles high ≥ 71°F · Tue Oct 20
Original prop, full history & receipt ↗