TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Highest temperature in Boston on Jul 17, 2026?
kalshi

Highest temperature in Boston on Jul 17, 2026?

Volume:
$26,170

84° to 85°

 - Kalshi

84° to 85° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 18, 2026

Closed: Jul 18, 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

84° to 85°

View
100%
Yes 100¢No 0¢
100¢
N/A
$6,267
N/A
N/A
$3,968
Settled
Yes
kalshi

86° to 87°

0%
Yes 0¢No 100¢
100¢
N/A
$7,926
N/A
N/A
$4,705
Settled
No
kalshi

82° to 83°

0%
Yes 0¢No 100¢
100¢
N/A
$4,337
N/A
N/A
$3,575
Settled
No
kalshi

81° or below

0%
Yes 0¢No 100¢
100¢
N/A
$3,342
N/A
N/A
$3,031
Settled
No
kalshi

88° to 89°

0%
Yes 0¢No 100¢
100¢
N/A
$2,688
N/A
N/A
$2,336
Settled
No
kalshi

90° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,609
N/A
N/A
$1,588
Settled
No
Total markets: 6

Description

This event forecasts the highest temperature in Boston on July 17, 2026. The outcome will be determined by the maximum temperature recorded at Boston Logan Airport, MA on that date according to the National Weather Service's official daily climatological report.

Kalshi

Resolution is based on the maximum temperature recorded at Boston (Logan Airport), MA on July 17, 2026, as reported in the National Weather Service's Climatological Report (Daily), accessible via the NWS Boston office website. The event is divided into six temperature bands: 81°F or below, 82-83°F, 84-85°F, 86-87°F, 88-89°F, and 90°F or above. Each band corresponds to a distinct outcome. The official NWS Climatological Report (Daily) is the authoritative source for resolution; preliminary NWS data and third-party weather services such as AccuWeather or Google Weather may be consulted for guidance but are not binding. Traders should be aware that preliminary NWS reporting and measurement methods may involve rounding and conversion nuances that could affect interpretation of borderline values.