Climate almanac
Wilmington
Illinois, United States · 41.31°, -88.15°
What is the weather like in Wilmington in October?
In October, Wilmington is typically 66°F (19°C) during the day and 48°F (9°C) at night. The month brings about 4.2 in (107 mm) of precipitation in total. Snowfall averages about 0.5 in (12 mm) over the month.
- Average high66°F (19°C)
- Average low48°F (9°C)
- Precipitation4.2 in (107 mm)
- Clear or mostly clear days12
- Snowfall0.5 in (12 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)