Otter Lake Weather Forecast
- 19
- 26
Partly Sunny
- 27
- 33
Slight Chance Snow Showers
- 19
- 32
Mostly Cloudy
- 24
- 28
Snow Showers Likely
- 12
- 32
Breezy
- 18
- 26
Partly Sunny
Today 22 Mar Keweenaw
Mostly cloudy. North Winds 5 to 15 Mph with Gusts up to 25 Mph.
Tonight 22 Mar Keweenaw
Partly cloudy in the Evening, then mostly cloudy with a slight chance of snow Showers after midnight. Near steady temperature around 20. Light north Winds, becoming northwest 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of snow 20 percent.
Otter Lake Temperature Statistics
March Temperature
Copper Harbor (58.4 miles)
Lowest 1 March, 2026
1 °FAverage March
28 °FHighest 9 March, 2026
51.1 °F
Climate (2021–Present)
Copper Harbor (58.4 miles)
Average Low 2021–2026
38.5 °FAverage 2021–2026
44.7 °FAverage High 2021–2026
50.9 °F