TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in San Francisco on Jul 31, 2026?
kalshi

Highest temperature in San Francisco on Jul 31, 2026?

Volume:
$73,591

71° to 72°

 - Kalshi

71° to 72° - Kalshi

1W

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Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 1, 2026

Closed: Aug 1, 4:00 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

71° to 72°

View
100%
Yes 100¢No 0¢
100¢
N/A
$24,045
N/A
N/A
$13,495
Settled
Yes
kalshi

73° to 74°

0%
Yes 0¢No 100¢
100¢
N/A
$19,150
N/A
N/A
$8,519
Settled
No
kalshi

70° or below

0%
Yes 0¢No 100¢
100¢
N/A
$14,330
N/A
N/A
$11,165
Settled
No
kalshi

75° to 76°

0%
Yes 0¢No 100¢
100¢
N/A
$10,695
N/A
N/A
$5,145
Settled
No
kalshi

77° to 78°

0%
Yes 0¢No 100¢
100¢
N/A
$3,399
N/A
N/A
$2,444
Settled
No
kalshi

79° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,971
N/A
N/A
$1,644
Settled
No
Total markets: 6

Description

This event tracks the highest temperature recorded in San Francisco on a specific date in the future, using official government data. The outcome depends solely on the exact temperature measurement reported by the National Weather Service for that day.

Kalshi

All markets resolve based exclusively on the maximum temperature recorded at San Francisco Airport on July 31, 2026, as reported in the National Weather Service's official Climatological Report (Daily). Each market corresponds to a specific temperature range: below 71°F, 71-72°F, 73-74°F, 75-76°F, 77-78°F, or above 78°F. The official NWS report is the definitive source, and traders must use the latest version available after the date. Preliminary data from other services may differ due to rounding or conversion nuances, so only the final NWS figure determines resolution. All markets are mutually exclusive and collectively exhaustive for possible outcomes within these defined ranges.