Climate almanac
Lake Forest
Illinois, United States · 42.26°, -87.84°
What is the weather like in Lake Forest in July?
In July, Lake Forest is typically 75°F (24°C) during the day and 68°F (20°C) at night. The month brings about 3.1 in (78 mm) of precipitation in total.
- Average high75°F (24°C)
- Average low68°F (20°C)
- Precipitation3.1 in (78 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)