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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Highest temperature in Chicago on Jul 30, 2026?
kalshi

Highest temperature in Chicago on Jul 30, 2026?

Volume:
$113,068

85° to 86°

 - Kalshi

85° to 86° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 31, 2026

Closed: Jul 31, 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

85° to 86°

View
100%
Yes 100¢No 0¢
100¢
N/A
$45,590
N/A
N/A
$20,442
Settled
Yes
kalshi

87° to 88°

0%
Yes 0¢No 100¢
100¢
N/A
$32,131
N/A
N/A
$16,216
Settled
No
kalshi

84° or below

0%
Yes 0¢No 100¢
100¢
N/A
$24,314
N/A
N/A
$17,520
Settled
No
kalshi

89° to 90°

0%
Yes 0¢No 100¢
100¢
N/A
$8,360
N/A
N/A
$5,561
Settled
No
kalshi

91° to 92°

0%
Yes 0¢No 100¢
100¢
N/A
$1,344
N/A
N/A
$1,079
Settled
No
kalshi

93° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,330
N/A
N/A
$1,068
Settled
No
Total markets: 6

Description

This event tracks the peak temperature in Chicago on a specific summer day in 2026. It categorizes possible temperature ranges to determine the outcome based on official weather service data. Participants can speculate on how hot it will get, with different ranges offering varied levels of likelihood.

Kalshi

The event resolves based on the highest temperature recorded at Chicago Midway, IL on July 30, 2026, as 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 recorded temperature falls within a given range, that market resolves to Yes; otherwise, it resolves to No. All outcomes rely exclusively on the official NWS report, and traders should be aware that preliminary data may contain rounding or conversion nuances, making the final NWS report the definitive source. The secondary rule emphasizes that while third-party weather services may offer guidance, they do not determine the market outcome.