TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Highest temperature in Chicago on Jul 29, 2026?
kalshi

Highest temperature in Chicago on Jul 29, 2026?

Volume:
$100,222

80° to 81°

 - Kalshi

80° to 81° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 30, 2026

Closed: Jul 30, 1:59 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

80° to 81°

View
100%
Yes 100¢No 0¢
100¢
N/A
$31,048
N/A
N/A
$13,830
Settled
Yes
kalshi

79° or below

0%
Yes 0¢No 100¢
100¢
N/A
$47,805
N/A
N/A
$29,503
Settled
No
kalshi

82° to 83°

0%
Yes 0¢No 100¢
100¢
N/A
$14,009
N/A
N/A
$10,780
Settled
No
kalshi

84° to 85°

0%
Yes 0¢No 100¢
100¢
N/A
$4,462
N/A
N/A
$3,994
Settled
No
kalshi

86° to 87°

0%
Yes 0¢No 100¢
100¢
N/A
$1,584
N/A
N/A
$1,347
Settled
No
kalshi

88° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,315
N/A
N/A
$1,228
Settled
No
Total markets: 6

Description

This event tracks the peak temperature in Chicago on a specific summer day in 2026, using official government data as the definitive source. It categorizes possible temperature ranges to determine the outcome, ensuring transparency and reliability through standardized meteorological reporting.

Kalshi

The event resolves based on the highest temperature recorded at Chicago Midway, IL on July 29, 2026, as officially reported by the National Weather Service's Climatological Report (Daily). Six distinct temperature ranges are defined, each corresponding to a specific market outcome. If the temperature falls within a given range, that market resolves to Yes; all others resolve to No. All outcomes share the same verification source and methodology, with the NWS report serving as the final arbiter. Traders must recognize that preliminary data may undergo revisions, and only the official NWS report should be used for resolution. Rounding and conversion nuances in preliminary reports could affect interpretations, so caution is advised until the official report is published.