Climate almanac
Hermiston
Oregon, United States · 45.84°, -119.29°
What is the weather like in Hermiston in August?
In August, Hermiston is typically 94°F (34°C) during the day and 65°F (18°C) at night. The month brings about 0.1 in (3 mm) of precipitation in total.
- Average high94°F (34°C)
- Average low65°F (18°C)
- Precipitation0.1 in (3 mm)
- Clear or mostly clear days22
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)