Latest National Weather Service guidance and ensemble forecasts from NOAA's Global Forecast System and ECMWF project Chicago O'Hare International Airport's high temperature on March 29 clustering around 61-63°F, well above the 52°F climatological normal under a neutral-to-weak La Niña pattern promoting milder late-winter conditions. Trader sentiment reflects model spread on cloud cover evolution—increasing northwest clouds potentially capping peaks at 60-61°F, while partial afternoon sunshine and northwesterly winds (5-10 mph) fostering boundary layer mixing could push toward 62-65°F. Differentiating factors include frontal timing and solar insolation variability, with historical March analogs showing 2-3°F forecast uncertainty at 24 hours out; monitor tonight's 00Z model runs and morning NWS updates for refinements ahead of official KORD observations resolving the market.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in Chicago on March 29?
Highest temperature in Chicago on March 29?
62-63°F 24%
60-61°F 23%
64-65°F 19%
58-59°F 15%
$25,333 Vol.
$25,333 Vol.
53°F ou moins
1%
54-55°F
1%
56-57°F
4%
58-59°F
15%
60-61°F
23%
62-63°F
24%
64-65°F
19%
66-67°F
11%
68-69°F
5%
70-71°F
2%
72°F or higher
2%
62-63°F 24%
60-61°F 23%
64-65°F 19%
58-59°F 15%
$25,333 Vol.
$25,333 Vol.
53°F ou moins
1%
54-55°F
1%
56-57°F
4%
58-59°F
15%
60-61°F
23%
62-63°F
24%
64-65°F
19%
66-67°F
11%
68-69°F
5%
70-71°F
2%
72°F or higher
2%
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.
Marché ouvert : Mar 25, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Latest National Weather Service guidance and ensemble forecasts from NOAA's Global Forecast System and ECMWF project Chicago O'Hare International Airport's high temperature on March 29 clustering around 61-63°F, well above the 52°F climatological normal under a neutral-to-weak La Niña pattern promoting milder late-winter conditions. Trader sentiment reflects model spread on cloud cover evolution—increasing northwest clouds potentially capping peaks at 60-61°F, while partial afternoon sunshine and northwesterly winds (5-10 mph) fostering boundary layer mixing could push toward 62-65°F. Differentiating factors include frontal timing and solar insolation variability, with historical March analogs showing 2-3°F forecast uncertainty at 24 hours out; monitor tonight's 00Z model runs and morning NWS updates for refinements ahead of official KORD observations resolving the market.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
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