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Chicago Weather Markets on Kalshi

Today's projected temperature next to what the market is charging. Contracts settle on the official National Weather Service reading — not a phone app, and not necessarily the airport you'd expect.

How Chicago settles

Settlement stationChicago Midway (KMDW)
SourceNWS Climatological Report (CLI)
Daily high seriesKXHIGHCHI
Daily low seriesKXLOWTCHI
RoundingWhole degrees — “above 96°” means 97° or higher

Worth knowing

Chicago's market settles at Midway (KMDW), not O'Hare. This trips up almost everyone: O'Hare is the airport people quote, it's the one most weather apps show for “Chicago”, and on a given day the two can differ by a couple of degrees. Reading O'Hare produces a systematic error that feels like an edge.

Our projection vs the market

High · 2026-07-30

We project 87°F · likely range 8590°F

RangeMarketOur fair value
84° or below2%
85° to 86°29¢31%
87° to 88°53¢46%
89° to 90°12¢21%
91° to 92°1%
93° or above0%

Market prices are mid-quotes and move through the day; our figures are what the model currently projects, not a guarantee. Highlighted rows are where we differ from the market most — which is a disagreement, not a promise. Every pick we publish is graded win or lose on our public record.

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