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: Feb 18, 10:00 AM EST
Kalshi
This event tracks the highest temperature recorded at Chicago Midway Airport on February 17, 2026, according to the National Weather Service's official daily climatological data. The market outcome depends on what the recorded high temperature will be on that specific date in Chicago.