A persistent heat dome and strong downslope warming across the Front Range drove Denver’s official high to 87°F on October 5, 2026, exactly matching the 86–87°F bin now carrying 100% market-implied odds. National Weather Service observations at Denver International Airport recorded the peak at 3:21 PM MDT, tying the daily record set in 2024 and running 17°F above the 1991–2020 normal. Clear skies, very low humidity, and southerly flow under the ridge reinforced maximum temperatures in the upper 80s while preventing any cooler microclimate effects. With the observation period closed and verified data available, only an unlikely post-hoc station adjustment or measurement revision could shift the outcome.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedView resolved

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