Climate almanac
Mattoon
Illinois, United States · 39.48°, -88.37°
What is the weather like in Mattoon in July?
In July, Mattoon is typically 86°F (30°C) during the day and 69°F (21°C) at night. The month brings about 5.5 in (140 mm) of precipitation in total.
- Average high86°F (30°C)
- Average low69°F (21°C)
- Precipitation5.5 in (140 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)