Clear skies and light winds overnight are enabling strong radiative cooling across the Chicago area, with National Weather Service forecasts calling for a low near 59–62°F at official stations such as O’Hare. Recent surface observations show temperatures already falling through the upper 50s early Monday morning under dry conditions and high pressure, supporting the market’s strong consensus around 58–59°F. Model guidance remains consistent with minimal cloud cover or moisture return through dawn, keeping the implied probability concentrated in the narrow 56–59°F range while assigning low odds to substantially colder or warmer outcomes. Updated NWS briefings and hourly station reports will provide the final resolution data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Chicago on August 24?
58-59°F 94%
47°F or below 29%
50-51°F 22%
56-57°F 14%
47°F or below
29%
48-49°F
<1%
50-51°F
22%
52-53°F
1%
54-55°F
5%
56-57°F
14%
58-59°F
86%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66°F or higher
<1%
58-59°F 94%
47°F or below 29%
50-51°F 22%
56-57°F 14%
47°F or below
29%
48-49°F
<1%
50-51°F
22%
52-53°F
1%
54-55°F
5%
56-57°F
14%
58-59°F
86%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66°F or higher
<1%
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 22, 2026, 9:29 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...Clear skies and light winds overnight are enabling strong radiative cooling across the Chicago area, with National Weather Service forecasts calling for a low near 59–62°F at official stations such as O’Hare. Recent surface observations show temperatures already falling through the upper 50s early Monday morning under dry conditions and high pressure, supporting the market’s strong consensus around 58–59°F. Model guidance remains consistent with minimal cloud cover or moisture return through dawn, keeping the implied probability concentrated in the narrow 56–59°F range while assigning low odds to substantially colder or warmer outcomes. Updated NWS briefings and hourly station reports will provide the final resolution data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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