TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Philadelphia on Jul 28, 2026?
kalshi

Highest temperature in Philadelphia on Jul 28, 2026?

Volume:
$49,977

85° or above

 - Kalshi

85° or above - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 29, 2026

Closed: Jul 29, 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

85° or above

View
100%
Yes 100¢No 0¢
100¢
N/A
$13,950
N/A
N/A
$7,585
Settled
Yes
kalshi

83° to 84°

0%
Yes 0¢No 100¢
100¢
N/A
$16,224
N/A
N/A
$8,547
Settled
No
kalshi

81° to 82°

0%
Yes 0¢No 100¢
100¢
N/A
$10,071
N/A
N/A
$8,013
Settled
No
kalshi

79° to 80°

0%
Yes 0¢No 100¢
100¢
N/A
$4,150
N/A
N/A
$3,396
Settled
No
kalshi

77° to 78°

0%
Yes 0¢No 100¢
100¢
N/A
$2,992
N/A
N/A
$2,381
Settled
No
kalshi

76° or below

0%
Yes 0¢No 100¢
100¢
N/A
$2,589
N/A
N/A
$2,329
Settled
No
Total markets: 6

Description

This event tracks the peak temperature in Philadelphia on a specific summer day in 2026, using official government data as the definitive source. It categorizes possible temperature outcomes into distinct ranges, each representing a different market outcome based on recorded measurements.

Kalshi

The event determines its outcome based on the highest temperature recorded at Philadelphia International Airport on July 28, 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 resolution. If the recorded temperature falls within any of these ranges, the associated market resolves to Yes. All outcomes rely exclusively on the NWS report, with secondary notes cautioning traders about potential discrepancies in preliminary or third-party data sources due to rounding or conversion nuances. The final NWS report serves as the binding authority for resolution.