Climate almanac
Boulder
Colorado, United States · 40.01°, -105.27°
What is the weather like in Boulder in August?
In August, Boulder is typically 81°F (27°C) during the day and 54°F (12°C) at night. The month brings about 2.8 in (72 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low54°F (12°C)
- Precipitation2.8 in (72 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)