TOTAL VOLUME:

$134.2b

24H VOL:

$126,590,312

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,439,516,703

404,175

Markets across

30,277

events

MATCHED EVENTS:

2,685

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Philadelphia on Jul 31, 2026?
kalshi

Highest temperature in Philadelphia on Jul 31, 2026?

Volume:
$53,960

88° to 89°

 - Kalshi

88° to 89° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 1, 2026

Closed: Aug 1, 12:59 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

88° to 89°

View
100%
Yes 100¢No 0¢
100¢
N/A
$10,989
N/A
N/A
$6,545
Settled
Yes
kalshi

90° to 91°

0%
Yes 0¢No 100¢
100¢
N/A
$19,275
N/A
N/A
$10,727
Settled
No
kalshi

92° or above

0%
Yes 0¢No 100¢
100¢
N/A
$12,161
N/A
N/A
$7,415
Settled
No
kalshi

86° to 87°

0%
Yes 0¢No 100¢
100¢
N/A
$7,900
N/A
N/A
$4,765
Settled
No
kalshi

84° to 85°

0%
Yes 0¢No 100¢
100¢
N/A
$2,952
N/A
N/A
$2,288
Settled
No
kalshi

83° or below

0%
Yes 0¢No 100¢
100¢
N/A
$683
N/A
N/A
$545
Settled
No
Total markets: 6

Description

This event tracks the peak temperature in Philadelphia on a specific summer day in 2026. It categorizes possible temperature outcomes into distinct ranges, each representing a different market outcome based on official weather service data.

Kalshi

The event resolves based on the highest temperature recorded at Philadelphia International Airport on July 31, 2026, as officially reported by the National Weather Service's Climatological Report (Daily). Six distinct temperature ranges are defined, each corresponding to a specific market outcome: below 84°F, 84–85°F, 86–87°F, 88–89°F, 90–91°F, and above 91°F. The National Weather Service's report is the sole authority for determining the resolving temperature, and traders should be aware that preliminary data may contain rounding or conversion nuances that could affect interpretations before the official report is finalized.