Michigan weather in May
The state broadly agrees with itself in May: afternoons run 66° in Mackinac Island and 65° in Traverse City, with everywhere else in between.
Based on 2 weather stations. Two stations in the vacation north — Detroit and the state’s southern tier run warmer than what’s here, and the Upper Peninsula colder.
Northwest Lower Michigan
Highs near 65°, nights around 42°, and 3.5 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Traverse City | 65° / 42° | 7 | The orchards turn white and the town wakes up. |
The Straits
Highs near 66°, nights around 38°, and 2.8 in of rain in a typical May.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Mackinac Island | 66° / 38° | 6 | Everything reopens, cool and fresh, before the rush arrives. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.