TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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

Highest temperature in San Francisco on Aug 20, 2026?

Volume:
$52,083

69° to 70°

 - Kalshi

69° to 70° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 21, 2026

Closed: Aug 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

69° to 70°

View
100%
79%
Yes 100¢No 0¢
100¢
N/A
$8,657
N/A
N/A
$4,564
Settled
Yes
kalshi

66° or below

0%
28%
Yes 0¢No 100¢
100¢
N/A
$21,062
N/A
N/A
$11,297
Settled
No
kalshi

67° to 68°

0%
46%
Yes 0¢No 100¢
100¢
N/A
$12,288
N/A
N/A
$7,872
Settled
No
kalshi

71° to 72°

0%
3%
Yes 0¢No 100¢
100¢
N/A
$6,450
N/A
N/A
$4,538
Settled
No
kalshi

75° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,991
N/A
N/A
$1,694
Settled
No
kalshi

73° to 74°

0%
2%
Yes 0¢No 100¢
100¢
N/A
$1,636
N/A
N/A
$1,326
Settled
No
Total markets: 6

Description

This event tracks the daily peak temperature in San Francisco on a specific date in the future, categorizing outcomes based on temperature ranges. It uses a single authoritative weather data source to determine the result, ensuring consistency despite variations across weather services.

Kalshi

The event resolves based on the maximum temperature recorded in San Francisco (CLISFO) on August 20, 2026, as reported by The Weather Company. Six temperature ranges define the possible outcomes: 66° or below, 67-68°, 69-70°, 71-72°, 73-74°, and 75° or above. Each range has a corresponding market that resolves to Yes if the recorded temperature falls within that range. The Weather Company serves as the sole, definitive source for temperature data, overriding any discrepancies found in other weather services. This structure ensures an objective, unified standard for determining the event's outcome.