Manitou Island Weather Forecast
- 45
- 57
Mostly Sunny
- 41
- 54
Increasing Clouds
- 41
- 48
Mostly Cloudy
- 43
- 50
Rain Showers
- 38
- 49
Chance Rain Showers
- 36
- 43
Chance Rain Showers
- 37
- 42
Mostly Cloudy
Today 12 May Keweenaw
Sunny. Southeast Winds 5 to 15 Mph with Gusts up to 30 Mph.
Tonight 12 May Keweenaw
Clear. Lows in the upper 40s. South Winds 5 to 10 Mph, becoming southwest after midnight.
Manitou Island Temperature Statistics
May Temperature
Copper Harbor (13 miles)
Lowest 8 May, 2025
33.7 °FAverage May
45.9 °FHighest 9 May, 2025
71.7 °F
Climate (2020–Present)
Copper Harbor (13 miles)
Average Low 2020–2025
38.6 °FAverage 2020–2025
44.7 °FAverage High 2020–2025
50.8 °F