TOTAL VOLUME:

$134.1b

24H VOL:

$141,541,542

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,440,096,988

406,065

Markets across

30,522

events

MATCHED EVENTS:

2,692

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Lowest temperature in Boston on Sep 18, 2026?
kalshi

Lowest temperature in Boston on Sep 18, 2026?

Volume:
$7,557

61° to 62°

 - Kalshi

61° to 62° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 19, 2026

Closed: Sep 19, 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° to 62°

View
100%
48%
Yes 100¢No 0¢
100¢
N/A
$1,698
N/A
N/A
$1,182
Settled
Yes
kalshi

63° to 64°

0%
15%
Yes 0¢No 100¢
100¢
N/A
$2,014
N/A
N/A
$1,060
Settled
No
kalshi

65° to 66°

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,488
N/A
N/A
$986
Settled
No
kalshi

58° or below

0%
5%
Yes 0¢No 100¢
100¢
N/A
$1,003
N/A
N/A
$760
Settled
No
kalshi

67° or above

0%
2%
Yes 0¢No 100¢
100¢
N/A
$792
N/A
N/A
$650
Settled
No
kalshi

59° to 60°

0%
16%
Yes 0¢No 100¢
100¢
N/A
$562
N/A
N/A
$516
Settled
No
Total markets: 6

Description

This event tracks the lowest temperature recorded in Boston on a specific date in the future, using data from a designated weather provider. Participants can assess various temperature ranges to predict the outcome based on historical climate patterns and seasonal trends.

Kalshi

The event resolves based on the minimum temperature recorded at Boston's CLIBOS station on September 18, 2026, as reported by The Weather Company. Six distinct temperature ranges are defined, each corresponding to a separate market outcome. If the recorded minimum temperature falls within a specific range, the associated market resolves to 'Yes,' with all others resolving to 'No.' The Weather Company’s data is the sole authority for determination. Preliminary data may be subject to rounding or conversion discrepancies, and participants should exercise caution when interpreting early readings. If the Exchange identifies a material error in the initially published data, it may delay expiration until a corrected version is released or until the expiration date, whichever comes first. Should no data be available by the expiration date, all markets resolve to the last fair price determined by Kalshi. The 'Final' status on The Weather Company’s platform is informational and does not guarantee data accuracy or exempt the event from potential revisions.