Climate almanac
Charleston
Illinois, United States · 39.50°, -88.18°
What is the weather like in Charleston in June?
In June, Charleston is typically 85°F (29°C) during the day and 66°F (19°C) at night. The month brings about 3.9 in (100 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low66°F (19°C)
- Precipitation3.9 in (100 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)