Climate almanac
Storm Lake
Iowa, United States · 42.64°, -95.21°
What is the weather like in Storm Lake in September?
In September, Storm Lake is typically 79°F (26°C) during the day and 57°F (14°C) at night. The month brings about 3.2 in (83 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low57°F (14°C)
- Precipitation3.2 in (83 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)