**Forecasts from the National Weather Service and major models place Chicago’s high on August 27 in the upper 70s to low 80s, with 80–81 °F emerging as the consensus outcome.** A cold front has shifted winds to the northwest and northeast, advecting cooler, drier air behind it and limiting afternoon heating under partly to mostly sunny skies. This setup caps daytime maxima near or slightly below seasonal normals (historical average high ~81–82 °F), while the lake breeze and light winds further moderate temperatures. Recent model runs and official guidance show little spread, with most solutions clustering between 78–83 °F and minimal risk of either widespread cloud cover or stronger warming. The 57 % market-implied probability on 80–81 °F and secondary support for 78–79 °F and 82–83 °F therefore reflect the tight clustering of authoritative forecasts rather than any outlier scenario. Traders appear to be weighting the latest NWS point forecasts and ensemble consensus most heavily ahead of tomorrow’s resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Chicago on August 27?
80-81°F 56%
78-79°F 19%
82-83°F 19%
88-89°F 5%
73°F or below
<1%
74-75°F
2%
76-77°F
3%
78-79°F
19%
80-81°F
56%
82-83°F
19%
84-85°F
4%
86-87°F
2%
88-89°F
5%
90-91°F
2%
92°F or higher
<1%
80-81°F 56%
78-79°F 19%
82-83°F 19%
88-89°F 5%
73°F or below
<1%
74-75°F
2%
76-77°F
3%
78-79°F
19%
80-81°F
56%
82-83°F
19%
84-85°F
4%
86-87°F
2%
88-89°F
5%
90-91°F
2%
92°F or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest 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.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
Binuksan ang Market: Aug 25, 2026, 8:56 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 highest 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.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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...**Forecasts from the National Weather Service and major models place Chicago’s high on August 27 in the upper 70s to low 80s, with 80–81 °F emerging as the consensus outcome.** A cold front has shifted winds to the northwest and northeast, advecting cooler, drier air behind it and limiting afternoon heating under partly to mostly sunny skies. This setup caps daytime maxima near or slightly below seasonal normals (historical average high ~81–82 °F), while the lake breeze and light winds further moderate temperatures. Recent model runs and official guidance show little spread, with most solutions clustering between 78–83 °F and minimal risk of either widespread cloud cover or stronger warming. The 57 % market-implied probability on 80–81 °F and secondary support for 78–79 °F and 82–83 °F therefore reflect the tight clustering of authoritative forecasts rather than any outlier scenario. Traders appear to be weighting the latest NWS point forecasts and ensemble consensus most heavily ahead of tomorrow’s resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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