Climate almanac
Grinnell
Iowa, United States · 41.74°, -92.72°
What is the weather like in Grinnell in October?
In October, Grinnell is typically 65°F (18°C) during the day and 45°F (7°C) at night. The month brings about 4.3 in (109 mm) of precipitation in total. Snowfall averages about 0.3 in (8 mm) over the month.
- Average high65°F (18°C)
- Average low45°F (7°C)
- Precipitation4.3 in (109 mm)
- Clear or mostly clear days13
- Snowfall0.3 in (8 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)