KLAS / Tue Oct 20 / OFFICIAL STATION RECORD

Las Vegas, NVHigh ≥ 89°F

CONSENSUS FORECAST2%Oct 14 · 14:26 UTC

THE FORECAST FIELD

Who takes which side?

0% · NO50%YES · 100%

22%

19%

<1%

<1%

Consensus

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 11.2¢Risks 11.20u

WN2NO 88.8¢Risks 88.80u

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

ICON +88.80u · WN2 −88.80u

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

FOLLOW THE RUNS

Probability history

Recorded Reconstructed

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

AIFS SingleICONGFSUKMETGEMIFS archive

Inspect a forecast 2026-10-20T06:00:00+00:00 · UTC

View the forecast data

UTC	AIFS	ICON	GFS	UKMET	GEM	IFS*
2026-10-05T12:00:00+00:00	0.0%	—	—	—	—	0.3%
2026-10-05T18:00:00+00:00	3.9%	—	—	—	—	—
2026-10-06T00:00:00+00:00	17.9%	—	—	—	—	9.6%
2026-10-06T06:00:00+00:00	5.5%	—	—	—	—	—
2026-10-06T12:00:00+00:00	27.4%	—	—	—	—	11.0%
2026-10-06T18:00:00+00:00	20.4%	—	—	—	—	—
2026-10-07T00:00:00+00:00	4.3%	—	—	—	—	6.1%
2026-10-07T06:00:00+00:00	3.6%	—	—	—	—	—
2026-10-07T12:00:00+00:00	5.9%	—	—	—	—	8.3%
2026-10-07T18:00:00+00:00	5.1%	—	—	—	—	—
2026-10-08T00:00:00+00:00	2.2%	—	—	—	—	7.3%
2026-10-08T06:00:00+00:00	2.4%	—	—	—	—	—
2026-10-08T12:00:00+00:00	3.7%	—	—	—	—	20.1%
2026-10-08T18:00:00+00:00	10.3%	—	—	—	—	—
2026-10-09T00:00:00+00:00	12.6%	—	—	—	—	15.9%
2026-10-09T06:00:00+00:00	20.8%	—	—	—	—	—
2026-10-09T12:00:00+00:00	23.5%	—	—	—	—	14.2%
2026-10-09T18:00:00+00:00	11.1%	—	—	—	—	—
2026-10-10T00:00:00+00:00	5.5%	—	—	—	—	9.5%
2026-10-10T06:00:00+00:00	16.7%	—	—	—	—	—
2026-10-10T12:00:00+00:00	2.4%	—	—	—	—	4.4%
2026-10-10T18:00:00+00:00	6.1%	—	—	—	—	—
2026-10-11T00:00:00+00:00	1.8%	—	—	—	—	4.3%
2026-10-11T06:00:00+00:00	2.4%	—	16.9%	—	—	—
2026-10-11T12:00:00+00:00	1.8%	—	—	—	—	1.3%
2026-10-11T18:00:00+00:00	0.0%	—	—	—	—	—
2026-10-12T00:00:00+00:00	0.0%	—	0.7%	—	—	0.3%
2026-10-12T06:00:00+00:00	0.0%	—	1.7%	—	—	—
2026-10-12T12:00:00+00:00	0.0%	—	0.7%	—	—	1.1%
2026-10-12T18:00:00+00:00	0.0%	—	0.2%	—	—	—
2026-10-13T00:00:00+00:00	0.1%	0.1%	0.1%	—	—	0.4%
2026-10-13T06:00:00+00:00	0.0%	—	0.0%	—	—	—
2026-10-13T12:00:00+00:00	0.0%	3.5%	0.1%	0.1%	—	0.4%
2026-10-13T18:00:00+00:00	0.0%	—	10.7%	—	—	—
2026-10-14T00:00:00+00:00	0.0%	4.9%	8.2%	3.3%	—	0.9%
2026-10-14T06:00:00+00:00	0.4%	—	5.2%	—	—	—
2026-10-14T12:00:00+00:00	0.7%	1.0%	3.3%	12.2%	—	1.5%
2026-10-14T18:00:00+00:00	0.4%	—	1.7%	—	—	—
2026-10-15T00:00:00+00:00	0.1%	0.0%	1.8%	0.4%	—	0.9%
2026-10-15T06:00:00+00:00	0.6%	—	2.5%	—	—	—
2026-10-15T12:00:00+00:00	0.1%	3.6%	2.6%	7.4%	—	0.7%
2026-10-15T18:00:00+00:00	0.3%	0.0%	1.1%	—	—	—
2026-10-16T00:00:00+00:00	0.2%	0.0%	1.4%	3.4%	—	0.3%
2026-10-16T06:00:00+00:00	0.2%	0.0%	0.7%	—	—	0.8%
2026-10-16T12:00:00+00:00	0.4%	0.0%	1.2%	2.1%	—	1.0%
2026-10-16T18:00:00+00:00	0.4%	0.1%	0.5%	—	—	0.7%
2026-10-17T00:00:00+00:00	0.5%	0.4%	0.3%	2.3%	—	1.0%
2026-10-17T06:00:00+00:00	0.4%	0.0%	0.1%	—	—	0.8%
2026-10-17T12:00:00+00:00	0.3%	0.1%	0.2%	7.4%	0.0%	0.7%
2026-10-17T18:00:00+00:00	0.3%	0.0%	0.3%	—	—	0.3%
2026-10-18T00:00:00+00:00	0.1%	0.0%	0.4%	2.6%	—	0.6%
2026-10-18T06:00:00+00:00	0.1%	0.0%	0.2%	0.0%	—	0.5%
2026-10-18T12:00:00+00:00	0.1%	0.0%	0.3%	2.4%	0.0%	0.6%
2026-10-18T18:00:00+00:00	0.1%	0.2%	0.1%	2.7%	—	—
2026-10-19T00:00:00+00:00	0.0%	0.1%	0.1%	1.3%	0.1%	0.2%
2026-10-19T06:00:00+00:00	0.0%	0.1%	0.1%	1.4%	—	0.1%
2026-10-19T12:00:00+00:00	0.0%	0.1%	0.1%	1.6%	0.1%	0.0%
2026-10-19T18:00:00+00:00	0.0%	0.2%	0.0%	0.3%	—	0.0%
2026-10-20T00:00:00+00:00	0.0%	0.2%	0.0%	0.4%	0.0%	0.0%
2026-10-20T06:00:00+00:00	0.0%	—	0.0%	0.1%	—	0.0%

THE MODEL BOX SCORE

Forecasts & evidence

MODEL	YES	MEAN	SPREAD σ	INITIALIZATION UTC	BRIER ↓
ICON	22%	83.1°F	7.1°F	2026-10-14 00:00	Pending
IFS HRES	19%	82.8°F	6.6°F	2026-10-14 00:00	Pending
National Blend	4%	77.0°F	6.5°F	2026-10-14 06:00	Pending
AIFS Single	3%	78.5°F	5.4°F	2026-10-14 06:00	Pending
NWS forecast	2%	77.0°F	5.8°F	2026-10-14 02:00	Pending
IFS Ensemble	<1%	78.3°F	4.3°F	2026-10-14 00:00	Pending
WeatherNext 2	<1%	74.7°F	4.7°F	2026-10-14 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.

SETTLEMENT & PROVENANCE

High ≥ 89°F · KLAS

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-KLAS-20261020-TMAX-GE89
Opened Oct 14 · 14:26 UTC

Original listing: Las Vegas runs hot-for-here: 89°F+ · Tue Oct 20

Original prop, full history & receipt ↗