National Weather Service forecasts for Denver International Airport, the official observing site, project a high temperature near 80°F on April 20 under mostly sunny skies and light winds, driven by a strong high-pressure ridge aloft that promotes downslope warming and maximum daytime insolation at this elevation. Current morning observations already exceed 40°F with clear conditions persisting, aligning with model consensus from GFS and NAM runs showing no disruptions like clouds or cold advection. Trader consensus at 100% implied probability for 40°F or higher reflects this overwhelming evidence, as historical April baselines average 62°F highs. Realistic challenges are negligible—only an improbable sudden frontal intrusion or measurement anomaly could alter the outcome, with final resolution via NWS daily climatological report later today.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Denver on April 20?
40°F or higher 100.0%
21°F or below <1%
22-23°F <1%
24-25°F <1%
$85,359 Vol.
$85,359 Vol.
21°F or below
No
22-23°F
No
24-25°F
No
26-27°F
No
28-29°F
No
30-31°F
No
32-33°F
No
34-35°F
No
36-37°F
No
38-39°F
No
40°F or higher
Yes
40°F or higher 100.0%
21°F or below <1%
22-23°F <1%
24-25°F <1%
$85,359 Vol.
$85,359 Vol.
21°F or below
No
22-23°F
No
24-25°F
No
26-27°F
No
28-29°F
No
30-31°F
No
32-33°F
No
34-35°F
No
36-37°F
No
38-39°F
No
40°F or higher
Yes
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 Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
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 18, 2026, 12:10 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 Buckley Space Force Base Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/co/aurora/KBKF.
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/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
National Weather Service forecasts for Denver International Airport, the official observing site, project a high temperature near 80°F on April 20 under mostly sunny skies and light winds, driven by a strong high-pressure ridge aloft that promotes downslope warming and maximum daytime insolation at this elevation. Current morning observations already exceed 40°F with clear conditions persisting, aligning with model consensus from GFS and NAM runs showing no disruptions like clouds or cold advection. Trader consensus at 100% implied probability for 40°F or higher reflects this overwhelming evidence, as historical April baselines average 62°F highs. Realistic challenges are negligible—only an improbable sudden frontal intrusion or measurement anomaly could alter the outcome, with final resolution via NWS daily climatological report later today.
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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