Denver is starting Wednesday with clear skies and temperatures near 60 degrees, but the calm weather is only the opening act. The city will reach about 83 degrees under full sunshine before a late-week warmup pushes highs into the 90s.
Sunny Wednesday Leads Into A Hotter Thursday
Wednesday should stay dry from morning through evening, with a light northeast breeze and a high near 83. Tonight will be mostly clear, with temperatures falling to around 56 degrees.
Thursday brings the first real heat spike, with sunny skies and a high near 90. Winds will come from the south at around 6 mph, with occasional gusts reaching 16 mph.
Friday Could Reach 92 Degrees
How This Heat Compares
For perspective, according to National Weather Service records, Denver's September mean temperature is 64.8 degrees based on 1991-2020 data. The city recorded seven September days at or above 90 degrees in 2021, while the highest September temperature on record is 101 degrees, set on Sept. 5, 2020. Heat exposure can also vary within the city. A City and County of Denver heat-vulnerability map shows differences among census tracts based on socioeconomic, health and environmental conditions, meaning neighborhood-level heat risk is not captured by a single airport forecast.
Friday is expected to be mostly sunny and even warmer, with a high near 92 and only a small chance of rain. Overnight temperatures will remain relatively mild, dipping to around 60 degrees under partly cloudy skies.
Historical records provide broader context for the late-season heat. According to the National Weather Service, Denver recorded 75 days with highs of 90 degrees or better in 2020, surpassing the previous record of 73 days set in 2012, as reported by CBS Colorado. The National Weather Service also recorded 10 September days at or above 90 degrees in 2022, the most in Denver weather history.
Saturday eases back to the mid-80s before another warm push Sunday, when Denver could again reach 92 degrees. A slight chance of showers or thunderstorms returns Monday night and Tuesday, but most of the period ahead remains dry.
No Weather Alerts For Denver
No watches, warnings or advisories are currently posted for the area. With several hot, dry afternoons ahead, outdoor plans should be most comfortable earlier in the day or near sunset, when temperatures finally begin to back off.
