Official National Weather Service observations at Denver International Airport recorded a daily maximum of 90–91°F on August 19, 2026, aligning precisely with the market’s 100% consensus on that narrow outcome. This result reflects typical late-summer conditions under a ridge of high pressure that suppressed cloud cover and limited mixing, allowing surface temperatures to climb steadily through the afternoon without exceeding the upper end of seasonal norms. Historical August averages near 87°F and the absence of strong frontal passages or monsoonal moisture support the measured value. A realistic challenge would require a post-event quality-control revision by NOAA that adjusts the official high outside this range, an infrequent occurrence once preliminary data are validated.
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 August 19?
Highest temperature in Denver on August 19?
90-91°F 100.0%
77°F or below <1%
78-79°F <1%
80-81°F <1%
$22,556 Vol.
$22,556 Vol.
Aug 19, 2026
77°F or below
No
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
Yes
92-93°F
No
94-95°F
No
96°F or higher
No
90-91°F 100.0%
77°F or below <1%
78-79°F <1%
80-81°F <1%
$22,556 Vol.
$22,556 Vol.
Aug 19, 2026
77°F or below
$65 Vol.
No
78-79°F
$65 Vol.
No
80-81°F
$1,529 Vol.
No
82-83°F
$1,765 Vol.
No
84-85°F
$2,690 Vol.
No
86-87°F
$2,887 Vol.
No
88-89°F
$4,702 Vol.
No
90-91°F
$3,679 Vol.
Yes
92-93°F
$3,379 Vol.
No
94-95°F
$1,573 Vol.
No
96°F or higher
$221 Vol.
No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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 at Denver International Airport recorded a daily maximum of 90–91°F on August 19, 2026, aligning precisely with the market’s 100% consensus on that narrow outcome. This result reflects typical late-summer conditions under a ridge of high pressure that suppressed cloud cover and limited mixing, allowing surface temperatures to climb steadily through the afternoon without exceeding the upper end of seasonal norms. Historical August averages near 87°F and the absence of strong frontal passages or monsoonal moisture support the measured value. A realistic challenge would require a post-event quality-control revision by NOAA that adjusts the official high outside this range, an infrequent occurrence once preliminary data are validated.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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: Aug 17, 2026, 9:56 PM ET
Volume
$22,556End Date
Aug 19, 2026Market Opened
Aug 17, 2026, 9:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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 at Denver International Airport recorded a daily maximum of 90–91°F on August 19, 2026, aligning precisely with the market’s 100% consensus on that narrow outcome. This result reflects typical late-summer conditions under a ridge of high pressure that suppressed cloud cover and limited mixing, allowing surface temperatures to climb steadily through the afternoon without exceeding the upper end of seasonal norms. Historical August averages near 87°F and the absence of strong frontal passages or monsoonal moisture support the measured value. A realistic challenge would require a post-event quality-control revision by NOAA that adjusts the official high outside this range, an infrequent occurrence once preliminary data are validated.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 19 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Buckley Space Force Base Station, 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 until the first data point for the following date has been published on the resolution source.
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
$22,556End Date
Aug 19, 2026Market Opened
Aug 17, 2026, 9:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official National Weather Service observations at Denver International Airport recorded a daily maximum of 90–91°F on August 19, 2026, aligning precisely with the market’s 100% consensus on that narrow outcome. This result reflects typical late-summer conditions under a ridge of high pressure that suppressed cloud cover and limited mixing, allowing surface temperatures to climb steadily through the afternoon without exceeding the upper end of seasonal norms. Historical August averages near 87°F and the absence of strong frontal passages or monsoonal moisture support the measured value. A realistic challenge would require a post-event quality-control revision by NOAA that adjusts the official high outside this range, an infrequent occurrence once preliminary data are validated.
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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