Climate almanac
Oskaloosa
Iowa, United States · 41.30°, -92.64°
What is the weather like in Oskaloosa in September?
In September, Oskaloosa is typically 80°F (27°C) during the day and 59°F (15°C) at night. The month brings about 3.7 in (93 mm) of precipitation in total.
- Average high80°F (27°C)
- Average low59°F (15°C)
- Precipitation3.7 in (93 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)