Climate almanac
Fairfield
Illinois, United States · 42.22°, -88.06°
What is the weather like in Fairfield in July?
In July, Fairfield is typically 80°F (27°C) during the day and 67°F (20°C) at night. The month brings about 3.6 in (92 mm) of precipitation in total.
- Average high80°F (27°C)
- Average low67°F (20°C)
- Precipitation3.6 in (92 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)