TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 17, 2:00 AM EST
Kalshi
This market tracks the lowest temperature recorded in Chicago on July 16, 2026, using official National Weather Service data from Chicago-Midway. The outcome is determined by which temperature range the recorded minimum falls into, spanning from 69°F or below up to 78°F or above.
Resolution is based on the minimum temperature recorded at Chicago-Midway on July 16, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS Chicago office website under the Observed Weather tab for Chicago-Midway, IL with Daily Climate Report selected. Temperature ranges are: 69°F or below, 70-71°F, 72-73°F, 74-75°F, 76-77°F, and 78°F or above. 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.