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Cool end to Summer, warm start to Fall!

Posted at 4:41 AM, Sep 21, 2021

Clear skies are expected overnight with lows in the upper 30s to low 40s for Denver and the plains. Some patchy light frost will be possible in the South Platte Valley northeast of Denver. In the mountains, lows will be in the mid-to upper 20s.

Autumn begins on Wednesday at 1:21 p.m. MT. Sunny and warmer weather can be expected Wednesday and Thursday. Temperatures will climb back into the 80s both days.

Friday will be slightly cooler with the passage of a weak cold front — expect highs in the mid to upper 70s.

The first weekend of autumn will be fantastic with sunny skies and warm temperatures. The aspen trees will be full-on gold over the central and northern mountains and nearing their peak over the southern mountain areas.

The weather on Sunday should be picture perfect as well for the Broncos home opener — mostly sunny and warm with temperatures in the 80s during the game.

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