TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Lowest temperature in Boston on Jul 18, 2026?
kalshi

Lowest temperature in Boston on Jul 18, 2026?

Volume:
$14,468

60° or above

 - Kalshi

60° or above - Kalshi

1W

News

Positive

Negative

Neutral

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Vol.

·

Resolved Jul 19, 2026

Closed: Jul 19, 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

60° or above

View
100%
Yes 100¢No 0¢
100¢
N/A
$9,139
N/A
N/A
$8,704
Settled
Yes
kalshi

58° to 59°

0%
Yes 0¢No 100¢
100¢
N/A
$4,529
N/A
N/A
$3,550
Settled
No
kalshi

56° to 57°

0%
Yes 0¢No 100¢
100¢
N/A
$407
N/A
N/A
$368
Settled
No
kalshi

54° to 55°

0%
Yes 0¢No 100¢
100¢
N/A
$160
N/A
N/A
$103
Settled
No
kalshi

52° to 53°

0%
Yes 0¢No 100¢
100¢
N/A
$122
N/A
N/A
$118
Settled
No
kalshi

51° or below

0%
Yes 0¢No 100¢
100¢
N/A
$111
N/A
N/A
$111
Settled
No
Total markets: 6

Description

This event tracks the overnight low temperature in Boston on July 18, 2026. The outcome will be determined by the National Weather Service's official daily climatological report for Boston Logan Airport, which records the minimum temperature reached during that calendar day.

Kalshi

Resolution is based on the minimum temperature recorded at Boston (Logan Airport) on July 18, 2026, according to the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS website by navigating to the Observed Weather tab and selecting Boston (Logan Airport), MA with Daily Climate Report. Temperature ranges are divided into six bands: 51°F or below, 52-53°F, 54-55°F, 56-57°F, 58-59°F, and 60°F or above. Each band corresponds to a separate outcome. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official NWS Climatological Report (Daily) is the authoritative source, not preliminary reports or third-party weather services.