Climate almanac
Helena
Montana, United States · 46.59°, -112.04°
What is the weather like in Helena in August?
In August, Helena is typically 81°F (27°C) during the day and 51°F (11°C) at night. The month brings about 1.5 in (37 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low51°F (11°C)
- Precipitation1.5 in (37 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)