TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Boston on Jul 30, 2026?
kalshi

Highest temperature in Boston on Jul 30, 2026?

Volume:
$64,914

72° to 73°

 - Kalshi

72° to 73° - Kalshi

1W

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Positive

Negative

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Vol.

·

Resolved Jul 31, 2026

Closed: Jul 31, 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

72° to 73°

View
100%
Yes 100¢No 0¢
100¢
N/A
$9,017
N/A
N/A
$4,478
Settled
Yes
kalshi

68° to 69°

0%
Yes 0¢No 100¢
100¢
N/A
$19,735
N/A
N/A
$18,535
Settled
No
kalshi

70° to 71°

0%
Yes 0¢No 100¢
100¢
N/A
$13,481
N/A
N/A
$9,777
Settled
No
kalshi

67° or below

0%
Yes 0¢No 100¢
100¢
N/A
$11,066
N/A
N/A
$8,134
Settled
No
kalshi

74° to 75°

0%
Yes 0¢No 100¢
100¢
N/A
$7,378
N/A
N/A
$3,733
Settled
No
kalshi

76° or above

0%
Yes 0¢No 100¢
100¢
N/A
$4,237
N/A
N/A
$3,262
Settled
No
Total markets: 6

Description

This event tracks the highest temperature recorded in Boston on a specific date in the future, using official government data. Participants assess weather conditions and historical trends to predict temperature ranges, with outcomes determined by verified meteorological reports.

Kalshi

All markets resolve based on the maximum temperature recorded at Boston (Logan Airport), MA on July 30, 2026, as officially reported by the National Weather Service's Climatological Report (Daily). Each market corresponds to a specific temperature range: 67°F or below, 68–69°F, 70–71°F, 72–73°F, 74–75°F, or above 75°F. The official data source must be accessed via the provided NWS URL, navigating to the 'Observed Weather' tab and selecting the Daily Climate Report for the exact date. Traders should use the latest available report and remain cautious about preliminary data, rounding, and conversion nuances, as these can affect interpretations. All outcomes are strictly determined by the final NWS-reported temperature, regardless of other weather services' figures.