Climate almanac
Jacksonville
Illinois, United States · 39.73°, -90.23°
What is the weather like in Jacksonville in April?
In April, Jacksonville is typically 66°F (19°C) during the day and 45°F (7°C) at night. The month brings about 4.6 in (117 mm) of precipitation in total. Snowfall averages about 0.7 in (18 mm) over the month.
- Average high66°F (19°C)
- Average low45°F (7°C)
- Precipitation4.6 in (117 mm)
- Clear or mostly clear days9
- Snowfall0.7 in (18 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)