Recent National Weather Service and local forecasts indicate a high near 78–80°F in Denver on September 17 amid increasing cloud cover, scattered showers, and thunderstorm chances of 30–60 percent. This pattern follows a cooler, breezier Wednesday and stems from a passing weather system that limits daytime heating compared with recent highs in the mid-80s. Model consensus from NOAA guidance supports modest afternoon temperatures in the upper 70s to low 80s, with precipitation timing and wind shifts acting as key variables that could trim or slightly elevate the peak. Trader-implied probabilities cluster around 78–83°F because these ranges align with the current forecast envelope and historical mid-September norms, while lower or higher bins reflect lower-probability deviations from the expected steering flow and moisture profile. Updated model runs and afternoon observations will provide the next resolution-relevant data.
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 September 17?
80-81°F 42%
78-79°F 23%
82-83°F 22%
76-77°F 9%
65°F or below
<1%
66-67°F
1%
68-69°F
1%
70-71°F
2%
72-73°F
1%
74-75°F
4%
76-77°F
9%
78-79°F
23%
80-81°F
42%
82-83°F
22%
84°F or higher
5%
80-81°F 42%
78-79°F 23%
82-83°F 22%
76-77°F 9%
65°F or below
<1%
66-67°F
1%
68-69°F
1%
70-71°F
2%
72-73°F
1%
74-75°F
4%
76-77°F
9%
78-79°F
23%
80-81°F
42%
82-83°F
22%
84°F or higher
5%
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=kbkf
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Market Opened: Sep 15, 2026, 2:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kbkfResolver
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=kbkf
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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=kbkfResolver
0x69c47De9D...Recent National Weather Service and local forecasts indicate a high near 78–80°F in Denver on September 17 amid increasing cloud cover, scattered showers, and thunderstorm chances of 30–60 percent. This pattern follows a cooler, breezier Wednesday and stems from a passing weather system that limits daytime heating compared with recent highs in the mid-80s. Model consensus from NOAA guidance supports modest afternoon temperatures in the upper 70s to low 80s, with precipitation timing and wind shifts acting as key variables that could trim or slightly elevate the peak. Trader-implied probabilities cluster around 78–83°F because these ranges align with the current forecast envelope and historical mid-September norms, while lower or higher bins reflect lower-probability deviations from the expected steering flow and moisture profile. Updated model runs and afternoon observations will provide the next resolution-relevant data.
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