TOTAL VOLUME:

$134.2b

24H VOL:

$129,159,707

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,442,132,418

404,744

Markets across

30,489

events

MATCHED EVENTS:

2,691

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in San Francisco on Sep 20, 2026?
kalshi

Highest temperature in San Francisco on Sep 20, 2026?

Volume:
$29,736

64° or below

 - Kalshi

64° or below - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 21, 2026

Closed: Sep 21, 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

64° or below

View
100%
73%
Yes 100¢No 0¢
100¢
N/A
$14,487
N/A
N/A
$8,055
Settled
Yes
kalshi

65° to 66°

0%
41%
Yes 0¢No 100¢
100¢
N/A
$7,141
N/A
N/A
$3,164
Settled
No
kalshi

67° to 68°

0%
26%
Yes 0¢No 100¢
100¢
N/A
$5,318
N/A
N/A
$4,142
Settled
No
kalshi

69° to 70°

0%
5%
Yes 0¢No 100¢
100¢
N/A
$1,154
N/A
N/A
$841
Settled
No
kalshi

73° or above

0%
Yes 0¢No 100¢
100¢
N/A
$826
N/A
N/A
$726
Settled
No
kalshi

71° to 72°

0%
1%
Yes 0¢No 100¢
100¢
N/A
$810
N/A
N/A
$722
Settled
No
Total markets: 6

Description

This event tracks the highest temperature reached in San Francisco on a specific date in the future, using data from a designated weather provider. The outcome depends entirely on the official temperature recording for that day, with various temperature ranges determining different results.

Kalshi

The event resolves based on the maximum temperature recorded in San Francisco (CLISFO) on September 20, 2026, as reported by The Weather Company. Six distinct temperature ranges are defined, each corresponding to a different market outcome. If the temperature falls within any of these ranges, the associated market resolves to Yes; otherwise, it resolves to No. All markets share identical secondary rules regarding data verification and error handling. Preliminary data may be subject to revision, and the Exchange reserves the right to delay resolution if material errors are identified in initial publications. If final data remains unavailable by the expiration date, markets will resolve to the last fair price determined by the Exchange. The status of 'Final' on The Weather Company's platform is informational only and does not guarantee data accuracy or exempt markets from potential revisions under these rules.