TOTAL VOLUME:

$154.4b

24H VOL:

$290,393,159

24H TRANSACTIONS:

2,984,640,614

OPEN INTEREST:

$1,944,100,805

420,493

Markets across

40,511

events

MATCHED EVENTS:

4,612

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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Highest temperature in Boston on Oct 27, 2026?
kalshi

Highest temperature in Boston on Oct 27, 2026?

Volume:
$54,069

57° to 58°

 - Kalshi

57° to 58° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 28, 2026

Closed: Oct 28, 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

57° to 58°

View
100%
8%
Yes 100¢No 0¢
—
N/A
$7,735
N/A
N/A
$5,831
Settled
Yes
kalshi

55° to 56°

0%
Yes 0¢No 100¢
—
N/A
$17,557
N/A
N/A
$16,640
Settled
No
kalshi

53° to 54°

0%
Yes 0¢No 100¢
—
N/A
$10,856
N/A
N/A
$9,783
Settled
No
kalshi

51° to 52°

0%
Yes 0¢No 100¢
—
N/A
$9,401
N/A
N/A
$9,157
Settled
No
kalshi

59° or above

0%
7%
Yes 0¢No 100¢
—
N/A
$8,192
N/A
N/A
$6,785
Settled
No
kalshi

50° or below

0%
1%
Yes 0¢No 100¢
—
N/A
$330
N/A
N/A
$326
Settled
No
Total markets: 6

Description

This set of markets assesses the likelihood of specific temperature ranges in Boston on a particular day in the future. Each market corresponds to a different temperature band, allowing participants to speculate on how warm it might get. The outcomes are determined by official weather data from a designated source.

Kalshi

These markets resolve based on the maximum temperature recorded in Boston (CLIBOS) on October 27, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 50° or below, 51-52°, 53-54°, 55-56°, 57-58°, and 59° or above. If the recorded temperature falls within a market's specified range, that market resolves to Yes; otherwise, it resolves to No. All markets share consistent secondary rules regarding data verification and error handling. Preliminary Weather Company data may undergo revisions, and the Exchange reserves the right to delay expiration if material errors are identified in initial reports. If data remains unavailable by the expiration date, markets will resolve to the last fair price determined by Kalshi. The "Final" status on weather.com/kalshi is informational and does not guarantee data accuracy or exempt markets from potential revisions under these rules.