KLAS / Mon Oct 19 / OFFICIAL STATION RECORD

Las Vegas, NVHigh ≥ 90°F

FINAL OUTCOMENOOct 13 · 14:56 UTC

THE FORECAST FIELD

Who takes which side?

0% · NO50%YES · 100%

20%

20%

11%

<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 10.2¢Risks 10.25u

EPSNO 89.8¢Risks 89.75u

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

ICON +89.75u · EPS −89.75u

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 2026-10-19T18:00:00+00:00 · UTC

View the forecast data

UTC	AIFS	ICON	GFS	UKMET	GEM	IFS*
2026-10-04T12:00:00+00:00	0.0%	—	—	—	—	0.1%
2026-10-04T18:00:00+00:00	1.4%	—	—	—	—	—
2026-10-05T00:00:00+00:00	26.1%	—	—	—	—	9.3%
2026-10-05T06:00:00+00:00	23.6%	—	—	—	—	—
2026-10-05T12:00:00+00:00	29.7%	—	—	—	—	14.9%
2026-10-05T18:00:00+00:00	20.1%	—	—	—	—	—
2026-10-06T00:00:00+00:00	22.8%	—	—	—	—	6.4%
2026-10-06T06:00:00+00:00	3.4%	—	—	—	—	—
2026-10-06T12:00:00+00:00	28.8%	—	—	—	—	9.8%
2026-10-06T18:00:00+00:00	11.0%	—	—	—	—	—
2026-10-07T00:00:00+00:00	1.2%	—	—	—	—	3.9%
2026-10-07T06:00:00+00:00	1.4%	—	—	—	—	—
2026-10-07T12:00:00+00:00	2.1%	—	—	—	—	5.3%
2026-10-07T18:00:00+00:00	1.7%	—	—	—	—	—
2026-10-08T00:00:00+00:00	0.5%	—	—	—	—	5.1%
2026-10-08T06:00:00+00:00	0.5%	—	—	—	—	—
2026-10-08T12:00:00+00:00	2.5%	—	—	—	—	12.2%
2026-10-08T18:00:00+00:00	6.6%	—	—	—	—	—
2026-10-09T00:00:00+00:00	8.8%	—	—	—	—	11.5%
2026-10-09T06:00:00+00:00	16.0%	—	—	—	—	—
2026-10-09T12:00:00+00:00	14.3%	—	—	—	—	9.3%
2026-10-09T18:00:00+00:00	13.0%	—	—	—	—	—
2026-10-10T00:00:00+00:00	9.0%	—	—	—	—	8.1%
2026-10-10T06:00:00+00:00	9.4%	—	—	—	—	—
2026-10-10T12:00:00+00:00	8.8%	—	0.5%	—	—	4.2%
2026-10-10T18:00:00+00:00	10.0%	—	8.2%	—	—	—
2026-10-11T00:00:00+00:00	5.8%	—	—	—	—	4.3%
2026-10-11T06:00:00+00:00	5.8%	—	13.8%	—	—	—
2026-10-11T12:00:00+00:00	4.3%	—	1.1%	—	—	4.8%
2026-10-11T18:00:00+00:00	4.3%	—	15.5%	—	—	—
2026-10-12T00:00:00+00:00	2.3%	0.0%	14.3%	—	—	2.3%
2026-10-12T06:00:00+00:00	3.2%	—	7.1%	—	—	—
2026-10-12T12:00:00+00:00	4.0%	7.7%	14.9%	0.0%	—	2.1%
2026-10-12T18:00:00+00:00	4.9%	—	11.1%	—	—	—
2026-10-13T00:00:00+00:00	3.3%	4.2%	6.9%	3.1%	—	1.7%
2026-10-13T06:00:00+00:00	2.8%	—	5.4%	—	—	—
2026-10-13T12:00:00+00:00	2.8%	6.0%	9.0%	12.9%	—	1.9%
2026-10-13T18:00:00+00:00	2.9%	—	2.9%	—	—	—
2026-10-14T00:00:00+00:00	1.5%	1.9%	2.2%	4.7%	—	0.5%
2026-10-14T06:00:00+00:00	1.5%	—	4.9%	—	—	—
2026-10-14T12:00:00+00:00	1.0%	0.5%	3.3%	7.7%	—	0.2%
2026-10-14T18:00:00+00:00	0.8%	0.0%	4.5%	—	—	—
2026-10-15T00:00:00+00:00	0.6%	2.1%	2.4%	5.0%	—	0.3%
2026-10-15T06:00:00+00:00	0.5%	1.8%	3.4%	—	—	—
2026-10-15T12:00:00+00:00	0.1%	1.2%	1.4%	5.8%	—	0.3%
2026-10-15T18:00:00+00:00	0.1%	0.5%	0.3%	—	—	—
2026-10-16T00:00:00+00:00	0.1%	0.2%	0.2%	4.0%	—	0.1%
2026-10-16T06:00:00+00:00	0.1%	0.2%	0.2%	—	—	0.2%
2026-10-16T12:00:00+00:00	0.0%	0.2%	0.2%	4.2%	—	0.2%
2026-10-16T18:00:00+00:00	0.0%	0.0%	0.1%	—	—	0.1%
2026-10-17T00:00:00+00:00	0.0%	0.2%	0.1%	0.2%	0.0%	0.1%
2026-10-17T06:00:00+00:00	0.0%	0.1%	0.0%	0.0%	—	0.1%
2026-10-17T12:00:00+00:00	0.0%	0.1%	0.1%	0.2%	0.0%	0.1%
2026-10-17T18:00:00+00:00	0.0%	0.0%	0.0%	0.2%	—	0.0%
2026-10-18T00:00:00+00:00	0.0%	0.0%	0.0%	0.0%	—	0.0%
2026-10-18T06:00:00+00:00	0.0%	0.0%	0.0%	0.1%	—	0.0%
2026-10-18T12:00:00+00:00	0.0%	0.0%	0.0%	0.1%	0.0%	0.0%
2026-10-18T18:00:00+00:00	0.0%	0.0%	0.0%	0.1%	—	—
2026-10-19T00:00:00+00:00	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
2026-10-19T06:00:00+00:00	0.0%	0.0%	0.0%	0.0%	—	0.0%
2026-10-19T12:00:00+00:00	0.0%	0.0%	0.0%	0.0%	0.0%	0.0%
2026-10-19T18:00:00+00:00	0.0%	0.0%	0.0%	0.0%	—	0.0%

THE MODEL BOX SCORE

Forecasts & evidence

MODEL	YES	MEAN	SPREAD σ	INITIALIZATION UTC	BRIER ↓
IFS HRES	20%	84.1°F	6.6°F	2026-10-13 00:00	0.0420
ICON	20%	83.7°F	7.0°F	2026-10-13 00:00	0.0420
NWS forecast	17%	84.0°F	5.8°F	2026-10-13 03:00	0.0299
AIFS Single	11%	83.1°F	5.3°F	2026-10-13 06:00	0.0130
WeatherNext 2	6%	82.3°F	4.6°F	2026-10-13 00:00	0.0034
National Blend	2%	83.0°F	3.3°F	2026-10-13 06:00	0.0006
IFS Ensemble	<1%	75.7°F	3.5°F	2026-10-13 00:00	0.0000

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 ≥ 90°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-20261019-TMAX-GE90
Opened Oct 13 · 01:59 UTC

Original listing: A 90° day in Las Vegas · Mon Oct 19

Original prop, full history & receipt ↗