Forecast models from the National Weather Service and major global ensembles show a potent cold front advancing southward across the central Rockies, with northerly flow and high pressure suppressing daytime heating over Denver on May 18. These runs consistently project maximum temperatures in the mid-50s to low 60s Fahrenheit, aligning with historical May climatology under similar synoptic patterns and driving the overwhelming 99.1% market-implied probability for 61°F or below. Brief warming from downslope chinook winds or an unexpected jet-stream shift could push readings a few degrees higher, but current observational data and short-range guidance indicate such changes remain low-probability before the resolution window closes.
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 99.4%
66-67°F <1%
72-73°F <1%
74-75°F <1%
NEW
$10,135 Vol.
NEW
$10,135 Vol.
May 18, 2026
61°F or below
99%
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 99.4%
66-67°F <1%
72-73°F <1%
74-75°F <1%
NEW
$10,135 Vol.
NEW
$10,135 Vol.
May 18, 2026
61°F or below
$1,112 Vol.
99%
62-63°F
$1,174 Vol.
<1%
64-65°F
$1,152 Vol.
<1%
66-67°F
$1,345 Vol.
<1%
68-69°F
$1,017 Vol.
<1%
70-71°F
$766 Vol.
<1%
72-73°F
$721 Vol.
<1%
74-75°F
$721 Vol.
<1%
76-77°F
$721 Vol.
<1%
78-79°F
$771 Vol.
<1%
80°F or higher
$792 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.Forecast models from the National Weather Service and major global ensembles show a potent cold front advancing southward across the central Rockies, with northerly flow and high pressure suppressing daytime heating over Denver on May 18. These runs consistently project maximum temperatures in the mid-50s to low 60s Fahrenheit, aligning with historical May climatology under similar synoptic patterns and driving the overwhelming 99.1% market-implied probability for 61°F or below. Brief warming from downslope chinook winds or an unexpected jet-stream shift could push readings a few degrees higher, but current observational data and short-range guidance indicate such changes remain low-probability before the resolution window closes.
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
$10,135End 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.Forecast models from the National Weather Service and major global ensembles show a potent cold front advancing southward across the central Rockies, with northerly flow and high pressure suppressing daytime heating over Denver on May 18. These runs consistently project maximum temperatures in the mid-50s to low 60s Fahrenheit, aligning with historical May climatology under similar synoptic patterns and driving the overwhelming 99.1% market-implied probability for 61°F or below. Brief warming from downslope chinook winds or an unexpected jet-stream shift could push readings a few degrees higher, but current observational data and short-range guidance indicate such changes remain low-probability before the resolution window closes.
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
$10,135End Date
May 18, 2026Market Opened
May 16, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/us/co/aurora/KBKFForecast models from the National Weather Service and major global ensembles show a potent cold front advancing southward across the central Rockies, with northerly flow and high pressure suppressing daytime heating over Denver on May 18. These runs consistently project maximum temperatures in the mid-50s to low 60s Fahrenheit, aligning with historical May climatology under similar synoptic patterns and driving the overwhelming 99.1% market-implied probability for 61°F or below. Brief warming from downslope chinook winds or an unexpected jet-stream shift could push readings a few degrees higher, but current observational data and short-range guidance indicate such changes remain low-probability before the resolution window closes.
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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