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 12, 2026?
kalshi

Highest temperature in Boston on Jul 12, 2026?

Volume:
$20,242

78° or below

 - Kalshi

78° or below - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 13, 2026

Closed: Jul 13, 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

78° or below

View
100%
Yes 100¢No 0¢
100¢
N/A
$7,202
N/A
N/A
$5,249
Settled
Yes
kalshi

79° to 80°

0%
Yes 0¢No 100¢
100¢
N/A
$8,200
N/A
N/A
$5,412
Settled
No
kalshi

81° to 82°

0%
Yes 0¢No 100¢
100¢
N/A
$2,565
N/A
N/A
$1,652
Settled
No
kalshi

83° to 84°

0%
Yes 0¢No 100¢
100¢
N/A
$865
N/A
N/A
$710
Settled
No
kalshi

87° or above

0%
Yes 0¢No 100¢
100¢
N/A
$791
N/A
N/A
$633
Settled
No
kalshi

85° to 86°

0%
Yes 0¢No 100¢
100¢
N/A
$619
N/A
N/A
$611
Settled
No
Total markets: 6

Description

This event forecasts the peak temperature in Boston on July 12, 2026. The outcome will be determined by the official National Weather Service daily climatological report for that date, which records the highest temperature reached at Boston Logan Airport.

Kalshi

Resolution is based on the maximum temperature recorded at Boston on July 12, 2026, according to the National Weather Service's Climatological Report (Daily) for Boston (Logan Airport), MA. The temperature is divided into six distinct ranges: 78°F or below, 79-80°F, 81-82°F, 83-84°F, 85-86°F, and 87°F or above. Each range corresponds to a separate market outcome that resolves to Yes if the recorded temperature falls within that bracket. Official data must be obtained from the NWS Climatological Report accessed through the specified URL and location selection, not from preliminary reports or alternative weather sources. Traders should be aware that preliminary NWS data may be subject to rounding and conversion nuances that could affect final resolution.