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%

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Highest temperature in Chicago on Aug 10, 2026?
kalshi

Highest temperature in Chicago on Aug 10, 2026?

Volume:
$103,657

88° to 89°

 - Kalshi

88° to 89° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 11, 2026

Closed: Aug 11, 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

88° to 89°

View
100%
94%
Yes 100¢No 0¢
100¢
N/A
$19,094
N/A
N/A
$9,709
Settled
Yes
kalshi

86° to 87°

0%
17%
Yes 0¢No 100¢
100¢
N/A
$26,526
N/A
N/A
$8,627
Settled
No
kalshi

84° to 85°

0%
47%
Yes 0¢No 100¢
100¢
N/A
$19,040
N/A
N/A
$12,788
Settled
No
kalshi

82° to 83°

0%
17%
Yes 0¢No 100¢
100¢
N/A
$15,553
N/A
N/A
$11,653
Settled
No
kalshi

81° or below

0%
7%
Yes 0¢No 100¢
100¢
N/A
$12,366
N/A
N/A
$10,341
Settled
No
kalshi

90° or above

0%
Yes 0¢No 100¢
100¢
N/A
$11,079
N/A
N/A
$8,421
Settled
No
Total markets: 6

Description

This event tracks the actual peak temperature in Chicago on a specific future date, using official government data as the definitive source. Participants assess likelihoods based on historical trends, seasonal patterns, and long-range forecasts. The outcome hinges solely on the temperature recorded at a designated weather station on that exact day.

Kalshi

All markets resolve based exclusively on the highest temperature recorded at Chicago Midway, IL on August 10, 2026, as reported in the National Weather Service's official Climatological Report (Daily). Each market corresponds to a specific temperature range: 81° or below, 82-83°, 84-85°, 86-87°, 88-89°, or 90° and above. If the recorded temperature falls within a market's defined range, that market resolves to Yes; all others resolve to No. Traders must rely solely on the NWS report for resolution, as preliminary or third-party data may differ due to rounding, conversion, or methodology variances. Caution is advised when interpreting early or unofficial data, since only the final NWS figure determines the outcome.