Lake John Weather Forecast
- 25
- 30
Mostly Cloudy
- 25
- 32
Mostly Cloudy
- 28
- 33
Cloudy
- 29
- 34
Mostly Cloudy
- 33
- 37
Mostly Cloudy
- 32
- 38
Mostly Cloudy
- 27
- 35
Mostly Cloudy
Today 4 Dec Keweenaw
Cloudy. North Winds 10 to 15 Mph.
Lake John Temperature Statistics
December Temperature
Copper Harbor (52.2 miles)
Lowest 2 December, 2020
26.1 °FAverage December
31.9 °FHighest 2 December, 2020
39 °F
Climate (2010–Present)
Copper Harbor (52.2 miles)
Average Low 2010–Present
37 °FAverage 2010–Present
42.7 °FAverage High 2010–Present
48.5 °F