Lake Upson Weather Forecast
- 27
- 29
Blizzard
- 27
- 34
Snow Likely
- 23
- 32
Mostly Cloudy
- 15
- 27
Slight Chance Snow Showers
- 9
- 21
Blustery
- 10
- 17
Mostly Cloudy
Today 18 Feb Keweenaw
Snow. Blowing snow. A slight chance of freezing rain in the afternoon. Snow may be heavy at Times. Visibility one quarter mile or less at Times. Snow accumulation of 8 to 12 Inches. Minor ice accumulation possible. Windy. Near steady temperature in the mid 20s. East Winds 20 to 30 Mph with Gusts up to 50 Mph. Chance of precipitation 100 percent.
Tonight 18 Feb Keweenaw
Windy. Snow Showers. Patchy blowing snow. Snow accumulation of 3 to 5 Inches. Lows around 26. East Winds 20 to 30 Mph. Gusts up to 50 Mph, decreasing to 40 Mph after midnight. Chance of snow 80 percent.
Lake Upson Temperature Statistics
February Temperature
Copper Harbor (7.5 miles)
Lowest 7 February, 2026
3 °FAverage February
23 °FHighest 14 February, 2026
42.1 °F
Climate (2021–Present)
Copper Harbor (7.5 miles)
Average Low 2021–2026
38.6 °FAverage 2021–2026
44.8 °FAverage High 2021–2026
51 °F