Denver, Colorado weather in August

Averages from 2021–2025 (155 days of record).

Average high: 88°F
Average low: 60°F
Rainy days: ~8 per month
Total precipitation: 1.4 in
Warmest recorded: 101°F
Coldest recorded: 51°F

Expect August days in Denver, Colorado to top out around 88°F and cool to about 60°F overnight, with roughly 8 days of measurable rain across the month. In recent years August has ranged from 51°F to 101°F.

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Current Denver, Colorado forecast → · Historical data by Open-Meteo (ERA5).