Climate almanac
Mandan
North Dakota, United States · 46.83°, -100.89°
What is the weather like in Mandan in September?
In September, Mandan is typically 75°F (24°C) during the day and 51°F (10°C) at night. The month brings about 2.0 in (51 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low51°F (10°C)
- Precipitation2.0 in (51 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)