Climate almanac
Monticello
Illinois, United States · 40.03°, -88.57°
What is the weather like in Monticello in April?
In April, Monticello is typically 65°F (18°C) during the day and 44°F (7°C) at night. The month brings about 5.0 in (126 mm) of precipitation in total. Snowfall averages about 0.5 in (13 mm) over the month.
- Average high65°F (18°C)
- Average low44°F (7°C)
- Precipitation5.0 in (126 mm)
- Clear or mostly clear days8
- Snowfall0.5 in (13 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)