Climate almanac
De Witt
Iowa, United States · 41.82°, -90.54°
What is the weather like in De Witt in September?
In September, De Witt is typically 79°F (26°C) during the day and 58°F (15°C) at night. The month brings about 3.5 in (88 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low58°F (15°C)
- Precipitation3.5 in (88 mm)
- Clear or mostly clear days15
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)