TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 2:00 AM EST
Kalshi
This market tracks the lowest temperature recorded in Chicago on July 19, 2026. The outcome is determined by the minimum temperature reading from the National Weather Service's official daily climatological report for Chicago-Midway, which serves as the authoritative source for weather data in the region.
Resolution is based on the minimum temperature recorded at Chicago-Midway on July 19, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS website by navigating to the Observed Weather tab and selecting Chicago - Midway, IL with Daily Climate Report. The temperature is divided into six ranges: 61°F or below, 62-63°F, 64-65°F, 66-67°F, 68-69°F, and 70°F or above. Each range corresponds to a separate outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official NWS Climatological Report (Daily) value takes precedence over other weather sources such as AccuWeather or Google Weather.