Climate almanac
Portage
Wisconsin, United States · 43.54°, -89.46°
What is the weather like in Portage in September?
In September, Portage is typically 75°F (24°C) during the day and 56°F (13°C) at night. The month brings about 3.6 in (92 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low56°F (13°C)
- Precipitation3.6 in (92 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)