March in Waukegan averages a daily high of 7°C with nights around -2.4°C. Expect roughly 10.6 wet days totalling 60.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Waukegan is May–September.
Based on CHICAGO WAUKEGAN REGIONAL AIRPORT, IL US (7.1km), 1995–2024. 25 years of March data.