Climate almanac
Hartland
Wisconsin, United States · 43.11°, -88.34°
What is the weather like in Hartland in September?
In September, Hartland is typically 75°F (24°C) during the day and 58°F (14°C) at night. The month brings about 3.5 in (89 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low58°F (14°C)
- Precipitation3.5 in (89 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)