Typical Weather in Bay City, MI in May

67° F Avg High

48° F Avg Low

7 Rainy Days

☀️ Temperature Summary

May is one of the warmer months of the year for Bay City, with highs averaging around 67°F. Lows overnight are typically around 48°F. Temperatures will generally increase as the month goes on, with daily high temperatures ranging between 61°F and 72°F.

May is a great time to visit Bay City, with mild temperatures and sunny days being very common.

High Temps Throughout the Year

☔ Rain Summary

In May you can expect close to a 21% chance of rain for any given day. It rains more than usual in May, with total rainfall for the month typically near 3 inches.