March in Champaign averages a daily high of 10.7°C with nights around -0.4°C. Expect roughly 10.7 wet days totalling 73.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Champaign is September.
Based on CHAMPAIGN 3 S, IL US (3.6km), 1995–2024. 29 years of March data.