Official National Weather Service observations recorded a daily maximum of 74°F in Denver on September 20, 2026—four degrees below the 1991–2020 normal—driving the near-certain market consensus on the 74–75°F bin. This outcome aligns with post-frontal cooling and limited insolation under partly cloudy conditions, as confirmed in the preliminary local climatological data released that evening. Traders assign negligible probability to adjacent ranges because verified station readings leave little room for revision, though rare post-analysis adjustments to the official high or use of a non-standard observing site could theoretically shift resolution. The market’s skin-in-the-game pricing reflects rapid incorporation of authoritative meteorological data once the observation window closed.
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 20?
Highest temperature in Denver on September 20?
74-75°F 100.0%
59°F or below <1%
60-61°F <1%
62-63°F <1%
$48,546 Vol.
$48,546 Vol.
Sep 20, 2026
59°F or below
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
100%
76-77°F
<1%
78°F or higher
<1%
74-75°F 100.0%
59°F or below <1%
60-61°F <1%
62-63°F <1%
$48,546 Vol.
$48,546 Vol.
Sep 20, 2026
59°F or below
$111 Vol.
<1%
60-61°F
$121 Vol.
<1%
62-63°F
$131 Vol.
<1%
64-65°F
$2,186 Vol.
<1%
66-67°F
$1,946 Vol.
<1%
68-69°F
$4,403 Vol.
<1%
70-71°F
$8,462 Vol.
<1%
72-73°F
$12,983 Vol.
<1%
74-75°F
$9,418 Vol.
100%
76-77°F
$6,768 Vol.
<1%
78°F or higher
$2,017 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Buckley Space Force Base Station in degrees Fahrenheit on 20 Sep '26.
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.Official National Weather Service observations recorded a daily maximum of 74°F in Denver on September 20, 2026—four degrees below the 1991–2020 normal—driving the near-certain market consensus on the 74–75°F bin. This outcome aligns with post-frontal cooling and limited insolation under partly cloudy conditions, as confirmed in the preliminary local climatological data released that evening. Traders assign negligible probability to adjacent ranges because verified station readings leave little room for revision, though rare post-analysis adjustments to the official high or use of a non-standard observing site could theoretically shift resolution. The market’s skin-in-the-game pricing reflects rapid incorporation of authoritative meteorological data once the observation window closed.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Buckley Space Force Base Station in degrees Fahrenheit on 20 Sep '26.
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.
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 18, 2026, 2:56 AM ET
Volume
$48,546End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kbkfResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Buckley Space Force Base Station in degrees Fahrenheit on 20 Sep '26.
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.Official National Weather Service observations recorded a daily maximum of 74°F in Denver on September 20, 2026—four degrees below the 1991–2020 normal—driving the near-certain market consensus on the 74–75°F bin. This outcome aligns with post-frontal cooling and limited insolation under partly cloudy conditions, as confirmed in the preliminary local climatological data released that evening. Traders assign negligible probability to adjacent ranges because verified station readings leave little room for revision, though rare post-analysis adjustments to the official high or use of a non-standard observing site could theoretically shift resolution. The market’s skin-in-the-game pricing reflects rapid incorporation of authoritative meteorological data once the observation window closed.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Buckley Space Force Base Station in degrees Fahrenheit on 20 Sep '26.
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.
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.
Volume
$48,546End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kbkfResolver
0x69c47De9D...Official National Weather Service observations recorded a daily maximum of 74°F in Denver on September 20, 2026—four degrees below the 1991–2020 normal—driving the near-certain market consensus on the 74–75°F bin. This outcome aligns with post-frontal cooling and limited insolation under partly cloudy conditions, as confirmed in the preliminary local climatological data released that evening. Traders assign negligible probability to adjacent ranges because verified station readings leave little room for revision, though rare post-analysis adjustments to the official high or use of a non-standard observing site could theoretically shift resolution. The market’s skin-in-the-game pricing reflects rapid incorporation of authoritative meteorological data once the observation window closed.
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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