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 Sep 27, 2026?
kalshi

Highest temperature in Boston on Sep 27, 2026?

Volume:
$12,756

61° or below

 - Kalshi

61° or below - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 28, 2026

Closed: Sep 28, 1:00 AM EST

kalshi

Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

61° or below

View
100%
65%
Yes 100¢No 0¢
100¢
N/A
$6,718
N/A
N/A
$4,620
Settled
Yes
kalshi

62° to 63°

0%
47%
Yes 0¢No 100¢
100¢
N/A
$2,824
N/A
N/A
$1,882
Settled
No
kalshi

64° to 65°

0%
14%
Yes 0¢No 100¢
100¢
N/A
$1,852
N/A
N/A
$1,606
Settled
No
kalshi

66° to 67°

0%
1%
Yes 0¢No 100¢
100¢
N/A
$568
N/A
N/A
$554
Settled
No
kalshi

70° or above

0%
1%
Yes 0¢No 100¢
100¢
N/A
$453
N/A
N/A
$453
Settled
No
kalshi

68° to 69°

0%
Yes 0¢No 100¢
100¢
N/A
$342
N/A
N/A
$314
Settled
No
Total markets: 6

Description

This event tracks the highest temperature recorded in Boston on a specific date in the future, using data from a designated weather provider. The outcome depends on where the temperature falls within predefined ranges, reflecting possible weather conditions for that day.

Kalshi

All markets resolve based on the maximum temperature recorded at Boston's official weather station (CLIBOS) on September 27, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 61°F or below, 62-63°F, 64-65°F, 66-67°F, 68-69°F, or 70°F and above. The Exchange may delay resolution if it identifies a material error in the initial data publication, allowing time for a corrected report or proceeding to the Expiration Date. If no valid data exists by the deadline, markets resolve at the last fair price determined by Kalshi. Preliminary data may differ from final figures due to rounding or conversion, and the 'Final' status on The Weather Company's platform does not guarantee error-free data.