Climate almanac
Williston
North Dakota, United States · 48.15°, -103.62°
What is the weather like in Williston in September?
In September, Williston is typically 74°F (23°C) during the day and 49°F (9°C) at night. The month brings about 2.0 in (50 mm) of precipitation in total.
- Average high74°F (23°C)
- Average low49°F (9°C)
- Precipitation2.0 in (50 mm)
- Clear or mostly clear days15
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)