May in Kokomo averages a daily high of 22.6°C with nights around 10°C. Expect roughly 13.4 wet days totalling 122.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kokomo is August–September.
Based on KOKOMO 3 WSW, IN US (4.7km), 1995–2024. 29 years of May data.