Trader consensus on Polymarket clusters around 68-75°F for Chicago's highest temperature on April 16, reflecting National Weather Service guidance for a high near 74°F under showers and thunderstorms, driven by an unseasonably warm southerly flow from a Midwest upper-level ridge boosting temperatures well above the 59°F April 16 normal. Differentiating the tight leading outcomes—72-73°F at 23% implied probability versus 68-69°F at 17.5%—hinges on precipitation timing and coverage: morning showers clearing early could allow peaks in the low 70s via partial sun and light winds, while persistent clouds or lake breeze onshore would cap highs nearer 68°F per ensemble model spreads in GFS and NAM runs. Evening forecast updates from NOAA models will clarify cloud impacts before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chicago on April 16?
Highest temperature in Chicago on April 16?
72-73°F 24%
68-69°F 22%
70-71°F 15%
74-75°F 14%
61°F or below
1%
62-63°F
3%
64-65°F
7%
66-67°F
11%
68-69°F
22%
70-71°F
15%
72-73°F
24%
74-75°F
14%
76-77°F
8%
78-79°F
2%
80°F or higher
1%
72-73°F 24%
68-69°F 22%
70-71°F 15%
74-75°F 14%
61°F or below
1%
62-63°F
3%
64-65°F
7%
66-67°F
11%
68-69°F
22%
70-71°F
15%
72-73°F
24%
74-75°F
14%
76-77°F
8%
78-79°F
2%
80°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.
Market Opened: Apr 14, 2026, 6:05 PM 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...Trader consensus on Polymarket clusters around 68-75°F for Chicago's highest temperature on April 16, reflecting National Weather Service guidance for a high near 74°F under showers and thunderstorms, driven by an unseasonably warm southerly flow from a Midwest upper-level ridge boosting temperatures well above the 59°F April 16 normal. Differentiating the tight leading outcomes—72-73°F at 23% implied probability versus 68-69°F at 17.5%—hinges on precipitation timing and coverage: morning showers clearing early could allow peaks in the low 70s via partial sun and light winds, while persistent clouds or lake breeze onshore would cap highs nearer 68°F per ensemble model spreads in GFS and NAM runs. Evening forecast updates from NOAA models will clarify cloud impacts before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions