Climate almanac
Macomb
Illinois, United States · 40.46°, -90.67°
What is the weather like in Macomb in January?
In January, Macomb is typically 35°F (2°C) during the day and 21°F (-6°C) at night. The month brings about 2.2 in (56 mm) of precipitation in total. Snowfall averages about 6.6 in (169 mm) over the month.
- Average high35°F (2°C)
- Average low21°F (-6°C)
- Precipitation2.2 in (56 mm)
- Clear or mostly clear days7
- Snowfall6.6 in (169 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)