**National Weather Service forecasts a high near 49°F for Chicago today under mostly sunny skies with light south-southwest winds of 5-15 mph, anchoring trader sentiment with 42.5% implied probability on 48-49°F and 33% on 50-51°F.** Ensemble guidance from NOAA's GFS and ECMWF models shows tight convergence around 48-50°F, reflecting post-frontal cooling after recent systems but ample daytime insolation. Key differentiators include boundary-layer mixing efficiency, potential thin cirrus clouds muting peak heating, and microscale variations at O'Hare Airport observation site—Chicago's official reference. March climatology averages 48°F highs, amplifying ±1-2°F uncertainty in short-range projections; watch hourly temperature reports through late afternoon for resolution shifts.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in Chicago on March 28?
Highest temperature in Chicago on March 28?
48-49°F 42%
50-51°F 34%
46-47°F 15%
52-53°F 10.1%
$96,337 Vol.
$96,337 Vol.
43°F or below
1%
44-45°F
3%
46-47°F
15%
48-49°F
42%
50-51°F
34%
52-53°F
10%
54-55°F
3%
56-57°F
1%
58-59°F
1%
60-61°F
1%
62°F or higher
<1%
48-49°F 42%
50-51°F 34%
46-47°F 15%
52-53°F 10.1%
$96,337 Vol.
$96,337 Vol.
43°F or below
1%
44-45°F
3%
46-47°F
15%
48-49°F
42%
50-51°F
34%
52-53°F
10%
54-55°F
3%
56-57°F
1%
58-59°F
1%
60-61°F
1%
62°F or higher
<1%
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 24, 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...**National Weather Service forecasts a high near 49°F for Chicago today under mostly sunny skies with light south-southwest winds of 5-15 mph, anchoring trader sentiment with 42.5% implied probability on 48-49°F and 33% on 50-51°F.** Ensemble guidance from NOAA's GFS and ECMWF models shows tight convergence around 48-50°F, reflecting post-frontal cooling after recent systems but ample daytime insolation. Key differentiators include boundary-layer mixing efficiency, potential thin cirrus clouds muting peak heating, and microscale variations at O'Hare Airport observation site—Chicago's official reference. March climatology averages 48°F highs, amplifying ±1-2°F uncertainty in short-range projections; watch hourly temperature reports through late afternoon for resolution shifts.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
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