WeatherMarket monitoringKalshi KXHIGHCHI-26OCT03 ↗

Highest temperature in Chicago on Oct 3, 2026?

Closes 2026-10-04 06:00 UTC6 outcomes

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Tracked outcomes

64° to 65°
63° or below
66° to 67°
68° to 69°
70° to 71°
72° or above

Exactly how this resolves

Station / series: CLIMDW — CHICAGO (KMDW, NWS LOT)
Measurement: Maximum temperature for the climate day 2026-10-03, 00:00-24:00 local standard time (UTC-6)
Window: 2026-10-03 06:00 UTC → 2026-10-04 06:00 UTC (America/Chicago)
Resolution source: The Weather Company (weather.com/kalshi) — The Weather Company daily maximum temperature for CLIMDW (weather.com/kalshi)
Independent check: NWS Daily Climate Report CLIMDW (WFO LOT); NOAA RCC-ACIS USW00014819
Rounding: Whole degrees Fahrenheit as reported; preliminary values may differ by rounding/conversion
Exceptions: Preliminary data may be revised; the exchange may hold expiration until a non-erroneous revision, else last fair price
Normalization: NORMALIZED · contract-norm/1

Venue rule (example outcome):

If the maximum temperature recorded at Chicago (CLIMDW) for Oct 3, 2026, is between 64-65° fahrenheit according to The Weather Company, then the market resolves to Yes.