In May, Grand Rapids typically sees daytime highs of 21.7°C and overnight lows around 7.4°C. Compared to the annual average high of 14.5°C, May runs +7.2°C.
May in Grand Rapids averages a daytime high of 21.7°C and an overnight low of 7.4°C.
May runs +7.2°C compared to Grand Rapids's annual average high of 14.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 21.7°C and cooler evenings around 7.4°C.