Climate almanac
Butte
Montana, United States · 46.00°, -112.53°
What is the weather like in Butte in September?
In September, Butte is typically 68°F (20°C) during the day and 40°F (5°C) at night. The month brings about 1.6 in (41 mm) of precipitation in total. Snowfall averages about 1.8 in (46 mm) over the month.
- Average high68°F (20°C)
- Average low40°F (5°C)
- Precipitation1.6 in (41 mm)
- Clear or mostly clear days15
- Snowfall1.8 in (46 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)