In May, Champaign typically sees daytime highs of 23.0°C and overnight lows around 10.2°C. Compared to the annual average high of 16.4°C, May runs +6.6°C.
May in Champaign averages a daytime high of 23.0°C and an overnight low of 10.2°C.
May runs +6.6°C compared to Champaign's annual average high of 16.4°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 23.0°C and cooler evenings around 10.2°C.