Climate almanac
Lewistown
Montana, United States · 47.06°, -109.43°
What is the weather like in Lewistown in October?
In October, Lewistown is typically 55°F (13°C) during the day and 35°F (2°C) at night. The month brings about 1.9 in (49 mm) of precipitation in total. Snowfall averages about 5.3 in (133 mm) over the month.
- Average high55°F (13°C)
- Average low35°F (2°C)
- Precipitation1.9 in (49 mm)
- Clear or mostly clear days12
- Snowfall5.3 in (133 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)