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Highest temperature in Chicago on April 30?

icon for Highest temperature in Chicago on April 30?

Highest temperature in Chicago on April 30?

55°F or below 100.0%

56-57°F <1%

58-59°F <1%

60-61°F <1%

Polymarket

$50,681 Vol.

55°F or below 100.0%

56-57°F <1%

58-59°F <1%

60-61°F <1%

Polymarket

$50,681 Vol.

55°F or below

$14,750 Vol.

Yes

56-57°F

$6,474 Vol.

No

58-59°F

$7,147 Vol.

No

60-61°F

$5,390 Vol.

No

62-63°F

$3,071 Vol.

No

64-65°F

$6,421 Vol.

No

66-67°F

$1,299 Vol.

No

68-69°F

$943 Vol.

No

70-71°F

$1,439 Vol.

No

72-73°F

$820 Vol.

No

74°F or higher

$2,926 Vol.

No

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 30 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.Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated station for this market, recorded a maximum temperature of 55°F or below on April 30, 2026, driving trader consensus to 100% implied probability for that outcome as data finalized. This reflects a persistent cool mid-level air mass over the Midwest following a cold frontal passage earlier in the week, reinforced by north-northwest winds of 10-15 mph, partly cloudy skies with scattered showers, and limited solar insolation—conditions aligned with High-Resolution Rapid Refresh (HRRR) and Global Forecast System (GFS) model consensus projecting highs near 50°F well below the 65°F climatological normal. Midday readings already peaked around 53°F, confirming suppressed heating. Realistic challenges to this positioning would require rare post-hoc data revisions from NOAA quality control, such as sensor recalibrations, though such adjustments are infrequent for finalized Automated Surface Observing System measurements.

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 30 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
$50,681
Data de Término
30 abr 2026
Mercado Aberto
Apr 28, 2026, 2:11 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 30 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.

Resultado proposto: Yes

Sem contestação

Resultado final: Yes

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 30 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.Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated station for this market, recorded a maximum temperature of 55°F or below on April 30, 2026, driving trader consensus to 100% implied probability for that outcome as data finalized. This reflects a persistent cool mid-level air mass over the Midwest following a cold frontal passage earlier in the week, reinforced by north-northwest winds of 10-15 mph, partly cloudy skies with scattered showers, and limited solar insolation—conditions aligned with High-Resolution Rapid Refresh (HRRR) and Global Forecast System (GFS) model consensus projecting highs near 50°F well below the 65°F climatological normal. Midday readings already peaked around 53°F, confirming suppressed heating. Realistic challenges to this positioning would require rare post-hoc data revisions from NOAA quality control, such as sensor recalibrations, though such adjustments are infrequent for finalized Automated Surface Observing System measurements.

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 30 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
$50,681
Data de Término
30 abr 2026
Mercado Aberto
Apr 28, 2026, 2:11 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 30 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.

Resultado proposto: Yes

Sem contestação

Resultado final: Yes

Cuidado com os links externos.

Frequently Asked Questions

"Highest temperature in Chicago on April 30?" 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 "55°F or below" at 100%, followed by "56-57°F" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% 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 30?" has generated $50.7K in total trading volume since the market launched on Apr 28, 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 30?," 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 30?" is "55°F or below" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "56-57°F" at 0%. 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 30?" 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.