Climate almanac
Oswego
Illinois, United States · 41.68°, -88.35°
What is the weather like in Oswego in March?
In March, Oswego is typically 51°F (10°C) during the day and 33°F (1°C) at night. The month brings about 3.8 in (96 mm) of precipitation in total. Snowfall averages about 2.9 in (73 mm) over the month.
- Average high51°F (10°C)
- Average low33°F (1°C)
- Precipitation3.8 in (96 mm)
- Clear or mostly clear days7
- Snowfall2.9 in (73 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)