Official National Weather Service observations for Denver on September 5, 2026, recorded a minimum temperature of 64°F under clear skies and light winds, well above the 1991–2020 normal of 54°F. Market-implied odds heavily favoring the 62–63°F bin reflect trader consensus on forecast model guidance that anticipated limited nocturnal cooling amid a strong high-pressure ridge and above-average daytime heat retention. Recent upstream atmospheric patterns, including persistent southerly flow, supported this range over cooler outcomes, with historical analogs for early September warm spells showing similar overnight minima. Resolution hinges on the precise NWS station reading, leaving little room for lower bins unless measurement adjustments emerge.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Denver on September 5?
62-63°F 99.5%
58-59°F 3%
60-61°F 1.0%
57°F or below <1%
$971 Vol.
$971 Vol.
57°F or below
No
58-59°F
No
60-61°F
No
62-63°F
Yes
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76°F or higher
No
62-63°F 99.5%
58-59°F 3%
60-61°F 1.0%
57°F or below <1%
$971 Vol.
$971 Vol.
57°F or below
No
58-59°F
No
60-61°F
No
62-63°F
Yes
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76°F or higher
No
The resolution source for this market will be information from NOAA, specifically the lowest 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 3, 2026, 3:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kbkfResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the lowest 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...Outcome proposed: No
No dispute
Final outcome: No
Official National Weather Service observations for Denver on September 5, 2026, recorded a minimum temperature of 64°F under clear skies and light winds, well above the 1991–2020 normal of 54°F. Market-implied odds heavily favoring the 62–63°F bin reflect trader consensus on forecast model guidance that anticipated limited nocturnal cooling amid a strong high-pressure ridge and above-average daytime heat retention. Recent upstream atmospheric patterns, including persistent southerly flow, supported this range over cooler outcomes, with historical analogs for early September warm spells showing similar overnight minima. Resolution hinges on the precise NWS station reading, leaving little room for lower bins unless measurement adjustments emerge.
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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