Detroit, Michigan weather in May

Averages from 2021–2025 (155 days of record).

Average high: 69°F
Average low: 51°F
Rainy days: ~11 per month
Total precipitation: 2.7 in
Warmest recorded: 89°F
Coldest recorded: 31°F

Expect May days in Detroit, Michigan to top out around 69°F and cool to about 51°F overnight, with roughly 11 days of measurable rain across the month. In recent years May has ranged from 31°F to 89°F.

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Current Detroit, Michigan forecast → · Historical data by Open-Meteo (ERA5).