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Highest temperature in Chicago on April 17?

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Highest temperature in Chicago on April 17?

Apr 16

Apr 17

Apr 18

Apr 16

Apr 17

Apr 18

80-81°F 34%

82-83°F 22%

78-79°F 20%

84-85°F 13%

Polymarket
NEW

$25,347 Vol.

80-81°F 34%

82-83°F 22%

78-79°F 20%

84-85°F 13%

Polymarket
NEW

$25,347 Vol.

71°F or below

$8,285 Vol.

1%

72-73°F

$2,113 Vol.

<1%

74-75°F

$1,265 Vol.

2%

76-77°F

$2,457 Vol.

6%

78-79°F

$1,611 Vol.

20%

80-81°F

$1,680 Vol.

34%

82-83°F

$1,882 Vol.

22%

84-85°F

$1,308 Vol.

13%

86-87°F

$1,711 Vol.

4%

88-89°F

$1,459 Vol.

1%

90°F or higher

$1,577 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 17 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 prices the highest temperature at Chicago O'Hare International Airport on April 17 at 80-81°F (33.5% implied probability), driven by the latest National Weather Service forecast guidance showing highs near 80°F under partly sunny skies with southwesterly winds of 10-15 mph enhancing warm air advection following record 2.43-inch rainfall at O'Hare on April 14. The broad distribution reflects model uncertainty, with GFS ensembles trending slightly warmer toward 82°F while ECMWF hints cooler at 78°F due to potential afternoon thunderstorms or lingering clouds capping peaks; key variables include convective inhibition, boundary layer mixing, and cloud cover evolution. New 12z model runs and NWS updates later today will sharpen the outlook ahead of resolution based on official observations.

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 17 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
$25,347
End Date
Apr 17, 2026
Market Opened
Apr 15, 2026, 6:05 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 17 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 17 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 prices the highest temperature at Chicago O'Hare International Airport on April 17 at 80-81°F (33.5% implied probability), driven by the latest National Weather Service forecast guidance showing highs near 80°F under partly sunny skies with southwesterly winds of 10-15 mph enhancing warm air advection following record 2.43-inch rainfall at O'Hare on April 14. The broad distribution reflects model uncertainty, with GFS ensembles trending slightly warmer toward 82°F while ECMWF hints cooler at 78°F due to potential afternoon thunderstorms or lingering clouds capping peaks; key variables include convective inhibition, boundary layer mixing, and cloud cover evolution. New 12z model runs and NWS updates later today will sharpen the outlook ahead of resolution based on official observations.

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 17 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
$25,347
End Date
Apr 17, 2026
Market Opened
Apr 15, 2026, 6:05 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 17 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 17?" 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 "80-81°F" at 34%, followed by "82-83°F" at 22%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 34¢ implies that the market collectively assigns a 34% 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 17?" has generated $25.3K in total trading volume since the market launched on Apr 15, 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 17?," 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 17?" is "80-81°F" at 34%, meaning the market assigns a 34% chance to that outcome. The next closest outcome is "82-83°F" at 22%. 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 17?" 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.