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KBOI / Mon Oct 26 / OFFICIAL STATION RECORD

Boise, IDHigh ≥ 70°F

CONSENSUS FORECAST17%Oct 20 · 18:33 UTC
THE FORECAST FIELD

Who takes which side?

0% · NO50%YES · 100%
ICON
50%
AIFS
38%
EPS
23%
HRES
18%
WN2
3%
Consensus
17%

Probabilities derived from each source’s mean and spread. Forecasts may have different initialization times.

HOW A MODEL CONTRACT WORKS

Head-to-head preview

ILLUSTRATIVE · NOT EXECUTED
ICONYES 26.7¢Risks 26.70u
VS
WN2NO 73.3¢Risks 73.30u

100 contracts at the midpoint of these model probabilities. Each contract pays 1u to the winning side.

ICON +73.30u · WN2 −73.30u

These are current forecast comparisons, not locked entries. No credits have been committed. Read the proposed policy →

FOLLOW THE RUNS

Probability history

Reconstructed from archived summary forecasts using a shared lead-dependent Gaussian error model. Times are initializations, not verified release times.

0%25%50%75%100%AIFS Single: 0.0% · 2026-10-11T12:00:00+00:00AIFS Single: 2.5% · 2026-10-11T18:00:00+00:00AIFS Single: 11.2% · 2026-10-12T00:00:00+00:00AIFS Single: 25.2% · 2026-10-12T06:00:00+00:00AIFS Single: 5.8% · 2026-10-12T12:00:00+00:00AIFS Single: 1.4% · 2026-10-12T18:00:00+00:00AIFS Single: 0.4% · 2026-10-13T00:00:00+00:00AIFS Single: 3.3% · 2026-10-13T06:00:00+00:00AIFS Single: 11.2% · 2026-10-13T12:00:00+00:00AIFS Single: 11.0% · 2026-10-13T18:00:00+00:00AIFS Single: 2.1% · 2026-10-14T00:00:00+00:00AIFS Single: 63.6% · 2026-10-14T06:00:00+00:00AIFS Single: 0.2% · 2026-10-14T12:00:00+00:00AIFS Single: 13.1% · 2026-10-14T18:00:00+00:00AIFS Single: 30.1% · 2026-10-15T00:00:00+00:00AIFS Single: 2.9% · 2026-10-15T06:00:00+00:00AIFS Single: 0.2% · 2026-10-15T12:00:00+00:00AIFS Single: 33.2% · 2026-10-15T18:00:00+00:00AIFS Single: 21.6% · 2026-10-16T00:00:00+00:00AIFS Single: 2.4% · 2026-10-16T06:00:00+00:00AIFS Single: 0.7% · 2026-10-16T12:00:00+00:00AIFS Single: 0.1% · 2026-10-16T18:00:00+00:00AIFS Single: 0.1% · 2026-10-17T00:00:00+00:00AIFS Single: 0.0% · 2026-10-17T06:00:00+00:00AIFS Single: 0.0% · 2026-10-17T12:00:00+00:00AIFS Single: 0.0% · 2026-10-17T18:00:00+00:00AIFS Single: 0.0% · 2026-10-18T00:00:00+00:00AIFS Single: 0.0% · 2026-10-18T06:00:00+00:00AIFS Single: 0.0% · 2026-10-18T12:00:00+00:00AIFS Single: 33.3% · 2026-10-18T18:00:00+00:00AIFS Single: 0.1% · 2026-10-19T00:00:00+00:00AIFS Single: 29.0% · 2026-10-19T06:00:00+00:00AIFS Single: 21.9% · 2026-10-19T12:00:00+00:00AIFS Single: 27.1% · 2026-10-19T18:00:00+00:00AIFS Single: 32.3% · 2026-10-20T00:00:00+00:00AIFS Single: 15.6% · 2026-10-20T06:00:00+00:00ICON: 0.0% · 2026-10-19T00:00:00+00:00ICON: 35.6% · 2026-10-19T12:00:00+00:00ICON: 25.4% · 2026-10-20T00:00:00+00:00GFS: 12.4% · 2026-10-17T12:00:00+00:00GFS: 18.1% · 2026-10-18T00:00:00+00:00GFS: 2.3% · 2026-10-18T06:00:00+00:00GFS: 0.0% · 2026-10-18T12:00:00+00:00GFS: 10.3% · 2026-10-18T18:00:00+00:00GFS: 11.8% · 2026-10-19T00:00:00+00:00GFS: 15.4% · 2026-10-19T06:00:00+00:00GFS: 5.1% · 2026-10-19T12:00:00+00:00GFS: 14.4% · 2026-10-19T18:00:00+00:00GFS: 8.7% · 2026-10-20T00:00:00+00:00GFS: 5.4% · 2026-10-20T06:00:00+00:00GFS: 5.4% · 2026-10-20T12:00:00+00:00UKMET: 0.0% · 2026-10-19T12:00:00+00:00UKMET: 1.4% · 2026-10-20T00:00:00+00:00GEM: 0.1% · 2026-10-20T00:00:00+00:00IFS archive: 0.2% · 2026-10-11T12:00:00+00:00IFS archive: 17.2% · 2026-10-12T00:00:00+00:00IFS archive: 9.6% · 2026-10-12T12:00:00+00:00IFS archive: 6.1% · 2026-10-13T00:00:00+00:00IFS archive: 11.0% · 2026-10-13T12:00:00+00:00IFS archive: 9.6% · 2026-10-14T00:00:00+00:00IFS archive: 8.7% · 2026-10-14T12:00:00+00:00IFS archive: 8.7% · 2026-10-15T00:00:00+00:00IFS archive: 5.1% · 2026-10-15T12:00:00+00:00IFS archive: 11.5% · 2026-10-16T00:00:00+00:00IFS archive: 6.4% · 2026-10-16T12:00:00+00:00IFS archive: 17.3% · 2026-10-17T00:00:00+00:00IFS archive: 17.7% · 2026-10-17T12:00:00+00:00IFS archive: 4.2% · 2026-10-18T00:00:00+00:00IFS archive: 8.0% · 2026-10-18T12:00:00+00:00IFS archive: 12.8% · 2026-10-19T00:00:00+00:00IFS archive: 14.1% · 2026-10-19T12:00:00+00:00IFS archive: 18.4% · 2026-10-20T00:00:00+00:0010-11 12:0010-16 00:0010-20 12:00
AIFS SingleICONGFSUKMETGEMIFS archive
2026-10-20T12:00:00+00:00 · UTC
View the forecast data
UTCAIFSICONGFSUKMETGEMIFS*
2026-10-11T12:00:00+00:000.0%————0.2%
2026-10-11T18:00:00+00:002.5%—————
2026-10-12T00:00:00+00:0011.2%————17.2%
2026-10-12T06:00:00+00:0025.2%—————
2026-10-12T12:00:00+00:005.8%————9.6%
2026-10-12T18:00:00+00:001.4%—————
2026-10-13T00:00:00+00:000.4%————6.1%
2026-10-13T06:00:00+00:003.3%—————
2026-10-13T12:00:00+00:0011.2%————11.0%
2026-10-13T18:00:00+00:0011.0%—————
2026-10-14T00:00:00+00:002.1%————9.6%
2026-10-14T06:00:00+00:0063.6%—————
2026-10-14T12:00:00+00:000.2%————8.7%
2026-10-14T18:00:00+00:0013.1%—————
2026-10-15T00:00:00+00:0030.1%————8.7%
2026-10-15T06:00:00+00:002.9%—————
2026-10-15T12:00:00+00:000.2%————5.1%
2026-10-15T18:00:00+00:0033.2%—————
2026-10-16T00:00:00+00:0021.6%————11.5%
2026-10-16T06:00:00+00:002.4%—————
2026-10-16T12:00:00+00:000.7%————6.4%
2026-10-16T18:00:00+00:000.1%—————
2026-10-17T00:00:00+00:000.1%————17.3%
2026-10-17T06:00:00+00:000.0%—————
2026-10-17T12:00:00+00:000.0%—12.4%——17.7%
2026-10-17T18:00:00+00:000.0%—————
2026-10-18T00:00:00+00:000.0%—18.1%——4.2%
2026-10-18T06:00:00+00:000.0%—2.3%———
2026-10-18T12:00:00+00:000.0%—0.0%——8.0%
2026-10-18T18:00:00+00:0033.3%—10.3%———
2026-10-19T00:00:00+00:000.1%0.0%11.8%——12.8%
2026-10-19T06:00:00+00:0029.0%—15.4%———
2026-10-19T12:00:00+00:0021.9%35.6%5.1%0.0%—14.1%
2026-10-19T18:00:00+00:0027.1%—14.4%———
2026-10-20T00:00:00+00:0032.3%25.4%8.7%1.4%0.1%18.4%
2026-10-20T06:00:00+00:0015.6%—5.4%———
2026-10-20T12:00:00+00:00——5.4%———
THE MODEL BOX SCORE

Forecasts & evidence

MODELYESMEANSPREAD σINITIALIZATION UTCBRIER ↓
ICON50%69.5°F7.1°F2026-10-20 00:00Pending
AIFS Single38%67.8°F5.4°F2026-10-20 06:00Pending
IFS Ensemble23%65.4°F5.7°F2026-10-20 00:00Pending
IFS HRES18%63.6°F6.6°F2026-10-20 00:00Pending
NWS forecast17%64.0°F5.9°F2026-10-20 14:00Pending
National Blend17%63.0°F6.9°F2026-10-20 06:00Pending
WeatherNext 23%61.0°F4.7°F2026-10-20 06:00Pending

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.

SETTLEMENT & PROVENANCE

High ≥ 70°F · KBOI

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-KBOI-20261026-TMAX-GE70
Opened Oct 19 · 07:33 UTC

Original listing: Boise runs hot-for-here: 70°F+ · Mon Oct 26

Original prop, full history & receipt ↗