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Highest temperature in Chicago on April 1?

Market icon

Highest temperature in Chicago on April 1?

42-43°F 43%

40-41°F 32.6%

44-45°F 20%

46-47°F 3.5%

Polymarket

$106,561 Vol.

42-43°F 43%

40-41°F 32.6%

44-45°F 20%

46-47°F 3.5%

Polymarket

$106,561 Vol.

33°F or below

$6,391 Vol.

<1%

34-35°F

$9,314 Vol.

<1%

36-37°F

$12,638 Vol.

<1%

38-39°F

$25,675 Vol.

<1%

40-41°F

$7,661 Vol.

33%

42-43°F

$5,479 Vol.

43%

44-45°F

$5,615 Vol.

20%

46-47°F

$5,940 Vol.

3%

48-49°F

$5,161 Vol.

2%

50-51°F

$5,658 Vol.

1%

52°F or higher

$17,079 Vol.

1%

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 1 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 heavily favors a high temperature of 42-43°F (42%) or 40-41°F (32.5%) at Chicago O'Hare International Airport today, reflecting the National Weather Service's latest forecast of a high near 41°F amid persistent mostly cloudy skies and lingering effects from recent storms. This positioning stems from a sharp cooldown after O'Hare tied its March 30 record high of 87°F, as a cool mid-level air mass overspreads the region under weak high pressure, suppressing diurnal heating. GFS and ECMWF model ensembles show tight clustering in the low-to-mid 40s, with outcomes hinging on cloud cover persistence—partial breaks could boost solar insolation and favor 42-43°F, while overcast conditions lock in the lower bin. Well below the April 1 climatological normal of 53°F, watch NWS hourly updates through afternoon for shifts in boundary layer temperatures.

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 1 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
$106,561
Data de Término
1 abr 2026
Mercado Aberto
Mar 29, 2026, 2:29 PM ET
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 1 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 1 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 heavily favors a high temperature of 42-43°F (42%) or 40-41°F (32.5%) at Chicago O'Hare International Airport today, reflecting the National Weather Service's latest forecast of a high near 41°F amid persistent mostly cloudy skies and lingering effects from recent storms. This positioning stems from a sharp cooldown after O'Hare tied its March 30 record high of 87°F, as a cool mid-level air mass overspreads the region under weak high pressure, suppressing diurnal heating. GFS and ECMWF model ensembles show tight clustering in the low-to-mid 40s, with outcomes hinging on cloud cover persistence—partial breaks could boost solar insolation and favor 42-43°F, while overcast conditions lock in the lower bin. Well below the April 1 climatological normal of 53°F, watch NWS hourly updates through afternoon for shifts in boundary layer temperatures.

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 1 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
$106,561
Data de Término
1 abr 2026
Mercado Aberto
Mar 29, 2026, 2:29 PM ET
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 1 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 1?" 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 "42-43°F" at 43%, followed by "40-41°F" at 33%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 43¢ implies that the market collectively assigns a 43% 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.

As of today, "Highest temperature in Chicago on April 1?" has generated $106.6K in total trading volume since the market launched on Mar 29, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Chicago on April 1?," 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 1?" is "42-43°F" at 43%, meaning the market assigns a 43% chance to that outcome. The next closest outcome is "40-41°F" at 33%. 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 1?" 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.