Climate almanac
Altoona
Wisconsin, United States · 44.80°, -91.44°
What is the weather like in Altoona in September?
In September, Altoona is typically 74°F (23°C) during the day and 55°F (13°C) at night. The month brings about 3.7 in (95 mm) of precipitation in total.
- Average high74°F (23°C)
- Average low55°F (13°C)
- Precipitation3.7 in (95 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)