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 Boston on Jul 28, 2026?
kalshi

Highest temperature in Boston on Jul 28, 2026?

Volume:
$62,391

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, 1:00 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

85° or above

View
100%
Yes 100¢No 0¢
100¢
N/A
$9,547
N/A
N/A
$7,475
Settled
Yes
kalshi

79° to 80°

0%
Yes 0¢No 100¢
100¢
N/A
$15,478
N/A
N/A
$10,651
Settled
No
kalshi

81° to 82°

0%
Yes 0¢No 100¢
100¢
N/A
$14,486
N/A
N/A
$8,254
Settled
No
kalshi

83° to 84°

0%
Yes 0¢No 100¢
100¢
N/A
$11,177
N/A
N/A
$6,638
Settled
No
kalshi

77° to 78°

0%
Yes 0¢No 100¢
100¢
N/A
$8,040
N/A
N/A
$4,789
Settled
No
kalshi

76° or below

0%
Yes 0¢No 100¢
100¢
N/A
$3,663
N/A
N/A
$3,493
Settled
No
Total markets: 6

Description

The event tracks the highest temperature in Boston on a specific date in 2026, resolving based on official weather service data. Outcomes depend on whether the temperature falls within predefined ranges from below 77°F up to above 84°F.

Kalshi

The event resolves based on the maximum temperature recorded at Boston (Logan Airport, MA) on July 28, 2026, as reported by the National Weather Service's Climatological Report (Daily). Six temperature ranges are defined: 76°F or below, 77-78°F, 79-80°F, 81-82°F, 83-84°F, and 85°F or above. If the recorded temperature falls within any of these ranges, the corresponding market resolves to Yes. The official data source is the NWS Climatological Report for Boston, and traders must use the latest version of the report available at the specified URL. Preliminary data and third-party sources are not considered official for resolution purposes. Rounding and conversion nuances in NWS reporting may affect interpretations, so caution is advised.