Climate almanac
Waukegan
Illinois, United States · 42.36°, -87.84°
What is the weather like in Waukegan in May?
In May, Waukegan is typically 55°F (13°C) during the day and 48°F (9°C) at night. The month brings about 5.0 in (126 mm) of precipitation in total.
- Average high55°F (13°C)
- Average low48°F (9°C)
- Precipitation5.0 in (126 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)