Climate almanac
Herrin
Illinois, United States · 37.80°, -89.03°
What is the weather like in Herrin in October?
In October, Herrin is typically 72°F (22°C) during the day and 52°F (11°C) at night. The month brings about 3.6 in (90 mm) of precipitation in total.
- Average high72°F (22°C)
- Average low52°F (11°C)
- Precipitation3.6 in (90 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)