A strong cold front advancing through the central Rockies has driven National Weather Service and NOAA ensemble guidance to forecast a daytime high of 45–50 °F in Denver on May 18, with persistent cloud cover, showers, and northerly flow suppressing warming. This positions the 61 °F-or-below outcome at 99.7 % implied probability, far below the late-May climatological normal near 70 °F. The entrenched upper-level trough and rapid frontal passage create minimal upside risk for significant warming, as confirmed by consistent GFS and ECMWF runs through the short lead time. A modest northward trough shift or delayed frontal timing could allow readings to reach the low 60s, though such adjustments remain unlikely given current model consensus ahead of official resolution.
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 May 18?
Highest temperature in Denver on May 18?
61°F or below 99.7%
62-63°F <1%
64-65°F <1%
66-67°F <1%
NEW
$19,063 Vol.
NEW
$19,063 Vol.
May 18, 2026
61°F or below
100%
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
<1%
76-77°F
<1%
78-79°F
<1%
80°F or higher
<1%
61°F or below 99.7%
62-63°F <1%
64-65°F <1%
66-67°F <1%
NEW
$19,063 Vol.
NEW
$19,063 Vol.
May 18, 2026
61°F or below
$3,854 Vol.
100%
62-63°F
$2,493 Vol.
<1%
64-65°F
$2,194 Vol.
<1%
66-67°F
$1,745 Vol.
<1%
68-69°F
$2,058 Vol.
<1%
70-71°F
$1,381 Vol.
<1%
72-73°F
$1,137 Vol.
<1%
74-75°F
$1,021 Vol.
<1%
76-77°F
$1,021 Vol.
<1%
78-79°F
$1,076 Vol.
<1%
80°F or higher
$1,092 Vol.
<1%
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 18 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.A strong cold front advancing through the central Rockies has driven National Weather Service and NOAA ensemble guidance to forecast a daytime high of 45–50 °F in Denver on May 18, with persistent cloud cover, showers, and northerly flow suppressing warming. This positions the 61 °F-or-below outcome at 99.7 % implied probability, far below the late-May climatological normal near 70 °F. The entrenched upper-level trough and rapid frontal passage create minimal upside risk for significant warming, as confirmed by consistent GFS and ECMWF runs through the short lead time. A modest northward trough shift or delayed frontal timing could allow readings to reach the low 60s, though such adjustments remain unlikely given current model consensus ahead of official resolution.
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 18 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 16, 2026, 12:05 AM ET
Volume
$19,063End Date
May 18, 2026Market Opened
May 16, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFThis market will resolve to the temperature range that contains the highest temperature recorded at the Buckley Space Force Base Station in degrees Fahrenheit on 18 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.A strong cold front advancing through the central Rockies has driven National Weather Service and NOAA ensemble guidance to forecast a daytime high of 45–50 °F in Denver on May 18, with persistent cloud cover, showers, and northerly flow suppressing warming. This positions the 61 °F-or-below outcome at 99.7 % implied probability, far below the late-May climatological normal near 70 °F. The entrenched upper-level trough and rapid frontal passage create minimal upside risk for significant warming, as confirmed by consistent GFS and ECMWF runs through the short lead time. A modest northward trough shift or delayed frontal timing could allow readings to reach the low 60s, though such adjustments remain unlikely given current model consensus ahead of official resolution.
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 18 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Buckley Space Force Base Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$19,063End Date
May 18, 2026Market Opened
May 16, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFA strong cold front advancing through the central Rockies has driven National Weather Service and NOAA ensemble guidance to forecast a daytime high of 45–50 °F in Denver on May 18, with persistent cloud cover, showers, and northerly flow suppressing warming. This positions the 61 °F-or-below outcome at 99.7 % implied probability, far below the late-May climatological normal near 70 °F. The entrenched upper-level trough and rapid frontal passage create minimal upside risk for significant warming, as confirmed by consistent GFS and ECMWF runs through the short lead time. A modest northward trough shift or delayed frontal timing could allow readings to reach the low 60s, though such adjustments remain unlikely given current model consensus ahead of official resolution.
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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