Climate almanac
East Alton
Illinois, United States · 38.88°, -90.11°
What is the weather like in East Alton in August?
In August, East Alton is typically 85°F (30°C) during the day and 68°F (20°C) at night. The month brings about 4.2 in (108 mm) of precipitation in total.
- Average high85°F (30°C)
- Average low68°F (20°C)
- Precipitation4.2 in (108 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)