TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 27, 4:00 AM EST
Kalshi
This event tracks the highest temperature reached in San Francisco on a specific date in the future, using official government data as the sole source for verification. The outcome depends entirely on how the temperature is recorded and reported by the National Weather Service for that day.
All markets resolve based solely on the maximum temperature recorded at San Francisco Airport on July 26, 2026, as reported in the National Weather Service's official Climatological Report (Daily). Each market corresponds to a specific temperature range: below 67°F, 67-68°F, 69-70°F, 71-72°F, 73-74°F, or above 74°F. The official NWS report is the definitive source, and traders must use the latest version available after the date in question. Preliminary data from other services may differ due to rounding or conversion nuances, so only the final NWS report determines the resolution. All markets are mutually exclusive and collectively exhaustive, with exactly one resolving to Yes based on where the actual temperature falls within these defined ranges.