Climate almanac
Sioux Falls
South Dakota, United States · 43.54°, -96.73°
What is the weather like in Sioux Falls in August?
In August, Sioux Falls is typically 82°F (28°C) during the day and 62°F (17°C) at night. The month brings about 3.5 in (89 mm) of precipitation in total.
- Average high82°F (28°C)
- Average low62°F (17°C)
- Precipitation3.5 in (89 mm)
- Clear or mostly clear days15
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)