**Forecast consensus from the National Weather Service and local outlets places Denver’s high on September 10, 2026, in the upper 80s to around 90 °F, aligning with the market’s heaviest weighting on 88–89 °F (51 %) and 90–91 °F (35 %).** Clear to partly cloudy skies under a stable high-pressure pattern, light winds, and above-average warmth in the lower troposphere support strong daytime heating above the city’s 5,280-foot elevation. Recent model runs and NWS point forecasts have converged on 87–90 °F, consistent with the observed 82 °F high on September 9 and the seasonal climb toward late-summer peaks. Historical September 10 averages near 81 °F, so the current setup represents a modest warm anomaly without extreme heat signatures that would push probabilities toward 92 °F or higher. Minor afternoon cloud cover or slight model spread keeps the lower 86–87 °F bin at 11.5 %, while cooler or much hotter outcomes remain low-probability tails given the stable synoptic environment and lack of incoming fronts. Traders are essentially pricing the most likely NWS-verified maximum within the narrow 88–91 °F window.
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 10?
88-89°F 51%
90-91°F 35%
86-87°F 12%
92-93°F 4%
79°F or below
1%
80-81°F
<1%
82-83°F
2%
84-85°F
3%
86-87°F
12%
88-89°F
51%
90-91°F
35%
92-93°F
4%
94-95°F
<1%
96-97°F
<1%
98°F or higher
<1%
88-89°F 51%
90-91°F 35%
86-87°F 12%
92-93°F 4%
79°F or below
1%
80-81°F
<1%
82-83°F
2%
84-85°F
3%
86-87°F
12%
88-89°F
51%
90-91°F
35%
92-93°F
4%
94-95°F
<1%
96-97°F
<1%
98°F or higher
<1%
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 8, 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...**Forecast consensus from the National Weather Service and local outlets places Denver’s high on September 10, 2026, in the upper 80s to around 90 °F, aligning with the market’s heaviest weighting on 88–89 °F (51 %) and 90–91 °F (35 %).** Clear to partly cloudy skies under a stable high-pressure pattern, light winds, and above-average warmth in the lower troposphere support strong daytime heating above the city’s 5,280-foot elevation. Recent model runs and NWS point forecasts have converged on 87–90 °F, consistent with the observed 82 °F high on September 9 and the seasonal climb toward late-summer peaks. Historical September 10 averages near 81 °F, so the current setup represents a modest warm anomaly without extreme heat signatures that would push probabilities toward 92 °F or higher. Minor afternoon cloud cover or slight model spread keeps the lower 86–87 °F bin at 11.5 %, while cooler or much hotter outcomes remain low-probability tails given the stable synoptic environment and lack of incoming fronts. Traders are essentially pricing the most likely NWS-verified maximum within the narrow 88–91 °F window.
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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