Climate almanac
Harrisburg
Illinois, United States · 37.74°, -88.54°
What is the weather like in Harrisburg in March?
In March, Harrisburg is typically 61°F (16°C) during the day and 42°F (6°C) at night. The month brings about 5.3 in (136 mm) of precipitation in total. Snowfall averages about 0.4 in (11 mm) over the month.
- Average high61°F (16°C)
- Average low42°F (6°C)
- Precipitation5.3 in (136 mm)
- Clear or mostly clear days9
- Snowfall0.4 in (11 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)