Climate almanac
Jerseyville
Illinois, United States · 39.12°, -90.33°
What is the weather like in Jerseyville in October?
In October, Jerseyville is typically 70°F (21°C) during the day and 50°F (10°C) at night. The month brings about 3.2 in (82 mm) of precipitation in total.
- Average high70°F (21°C)
- Average low50°F (10°C)
- Precipitation3.2 in (82 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)