Climate almanac
Sidney
Montana, United States · 47.72°, -104.16°
What is the weather like in Sidney in October?
In October, Sidney is typically 58°F (14°C) during the day and 36°F (2°C) at night. The month brings about 1.3 in (34 mm) of precipitation in total. Snowfall averages about 2.8 in (72 mm) over the month.
- Average high58°F (14°C)
- Average low36°F (2°C)
- Precipitation1.3 in (34 mm)
- Clear or mostly clear days13
- Snowfall2.8 in (72 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)