TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Boston on Aug 11, 2026?
kalshi

Highest temperature in Boston on Aug 11, 2026?

Volume:
$316,190

89° to 90°

 - Kalshi

89° to 90° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 12, 2026

Closed: Aug 12, 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

89° to 90°

View
100%
48%
Yes 100¢No 0¢
100¢
N/A
$82,592
N/A
N/A
$29,674
Settled
Yes
kalshi

87° to 88°

0%
25%
Yes 0¢No 100¢
100¢
N/A
$210,860
N/A
N/A
$52,116
Settled
No
kalshi

85° to 86°

0%
3%
Yes 0¢No 100¢
100¢
N/A
$9,588
N/A
N/A
$7,559
Settled
No
kalshi

91° to 92°

0%
11%
Yes 0¢No 100¢
100¢
N/A
$8,975
N/A
N/A
$6,480
Settled
No
kalshi

84° or below

0%
3%
Yes 0¢No 100¢
100¢
N/A
$2,445
N/A
N/A
$2,249
Settled
No
kalshi

93° or above

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,730
N/A
N/A
$1,599
Settled
No
Total markets: 6

Description

This event tracks the highest temperature recorded in Boston on a specific date in 2026. Participants assess whether the temperature will fall within certain ranges based on official weather service data. The outcome depends solely on the official temperature report for that day.

Kalshi

The event resolves based on the maximum temperature recorded in Boston on August 11, 2026, as reported by the National Weather Service's Climatological Report (Daily) for Boston (Logan Airport), MA. Six separate outcome ranges are defined: 84° or below, 85-86°, 87-88°, 89-90°, 91-92°, and 93° or above. If the recorded temperature falls within any of these ranges on the specified date, the corresponding market resolves to Yes. All participants must refer exclusively to the official NWS data source provided; preliminary or third-party weather data should not be used for resolution. Traders should be aware that NWS data may include rounding or conversion nuances, and the latest available report for the date must be used for final determination.