Highest temperature in Chicago on September 18?

/63°F or below

Weather/Temperature

19 days ago

daily

Ends DateSep 18, 2026

Liq$0

Vol$32.3K

OI$2.2K

Rules

Ref

AI

$32.3K total volume. Resolves Sep 18, 2026. Odds via Polymarket, aggregated by Future.