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Highest temperature in Chicago on April 7?

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Highest temperature in Chicago on April 7?

Apr 5

Apr 6

Apr 7

Apr 8

Apr 5

Apr 6

Apr 7

Apr 8

40-41°F 26%

38-39°F 24%

36-37°F 22%

34-35°F 14%

Polymarket
NEW

40-41°F 26%

38-39°F 24%

36-37°F 22%

34-35°F 14%

Polymarket
NEW

27°F or below

$983 Vol.

1%

28-29°F

$1,330 Vol.

1%

30-31°F

$883 Vol.

1%

32-33°F

$1,529 Vol.

3%

34-35°F

$416 Vol.

14%

36-37°F

$357 Vol.

22%

38-39°F

$342 Vol.

24%

40-41°F

$534 Vol.

26%

42-43°F

$509 Vol.

13%

44-45°F

$713 Vol.

8%

46°F or higher

$1,680 Vol.

6%

This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket reflects tight clustering around 36-41°F for Chicago O'Hare's highest temperature on April 7, driven by National Weather Service guidance and converging GFS/ECMWF ensemble means amid persistent post-frontal cloudiness following drenching rains and flood watches through April 4-5. Cool northerly winds and a lingering upper trough suppress highs well below the 55.6°F April 7 normal, with 40-41°F edging ahead due to signals of partial afternoon clearing in some model members allowing modest boundary-layer heating. Differentiating factors include cloud cover evolution—overcast persistence favors 36-39°F, while earlier breaks or lighter winds boost 40-43°F odds. New 12z runs and NWS updates later today will refine this uncertainty before resolution.

This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.

To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.

This market can not resolve to "Yes" until all data for this date has been finalized.

The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.

Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$9,277
End Date
Apr 7, 2026
Market Opened
Apr 3, 2026, 6:02 AM ET

Resolution Source

https://www.wunderground.com/history/daily/us/il/chicago/KORD

Resolver

0x69c47De9D...
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket reflects tight clustering around 36-41°F for Chicago O'Hare's highest temperature on April 7, driven by National Weather Service guidance and converging GFS/ECMWF ensemble means amid persistent post-frontal cloudiness following drenching rains and flood watches through April 4-5. Cool northerly winds and a lingering upper trough suppress highs well below the 55.6°F April 7 normal, with 40-41°F edging ahead due to signals of partial afternoon clearing in some model members allowing modest boundary-layer heating. Differentiating factors include cloud cover evolution—overcast persistence favors 36-39°F, while earlier breaks or lighter winds boost 40-43°F odds. New 12z runs and NWS updates later today will refine this uncertainty before resolution.

This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.

To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.

This market can not resolve to "Yes" until all data for this date has been finalized.

The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.

Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$9,277
End Date
Apr 7, 2026
Market Opened
Apr 3, 2026, 6:02 AM ET

Resolution Source

https://www.wunderground.com/history/daily/us/il/chicago/KORD

Resolver

0x69c47De9D...
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 7 Apr '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve to "Yes" until all data for this date has been finalized. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.

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Frequently Asked Questions

"Highest temperature in Chicago on April 7?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "40-41°F" at 26%, followed by "38-39°F" at 24%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 26¢ implies that the market collectively assigns a 26% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Highest temperature in Chicago on April 7?" is a newly created market on Polymarket, launched on Apr 3, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Highest temperature in Chicago on April 7?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Chicago on April 7?" is "40-41°F" at 26%, meaning the market assigns a 26% chance to that outcome. The next closest outcome is "38-39°F" at 24%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Chicago on April 7?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.