Climate almanac
Oelwein
Iowa, United States · 42.67°, -91.91°
What is the weather like in Oelwein in September?
In September, Oelwein is typically 77°F (25°C) during the day and 56°F (13°C) at night. The month brings about 4.0 in (102 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low56°F (13°C)
- Precipitation4.0 in (102 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)