Indianapolis, INHigh ≥ 77°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 +83.25u · EPS −83.25u
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 | 33% | 74.6°F | 4.3°F | 2026-10-17 06:00 | Pending |
| WeatherNext 2 | 13% | 72.7°F | 3.4°F | 2026-10-17 06:00 | Pending |
| NWS forecast | 8% | 71.0°F | 3.9°F | 2026-10-17 14:00 | Pending |
| IFS HRES | 5% | 69.1°F | 4.5°F | 2026-10-17 00:00 | Pending |
| ICON | 1% | 67.7°F | 4.0°F | 2026-10-17 00:00 | Pending |
| National Blend | <1% | 71.0°F | 2.2°F | 2026-10-17 06:00 | Pending |
| IFS Ensemble | <1% | 69.5°F | 2.8°F | 2026-10-17 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 ≥ 77°F · KIND
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-KIND-20261020-TMAX-GE77
Opened Oct 13 · 08:03 UTC
Original listing: Indianapolis runs hot-for-here: 77°F+ · Tue Oct 20
Original prop, full history & receipt ↗