Big Bay Weather Forecast

    • 8
    • 28

    Snow Showers Likely

    • 11
    • 12

    Snow Showers

    • 14
    • 22

    Chance Snow Showers

    • 18
    • 25

    Chance Snow Showers

    • 27
    • 39

    Mostly Cloudy

    • 22
    • 38

    Wintry Mix Likely

    • 10
    • 36

    Chance Snow Showers

Today 12 Dec Keweenaw

Snow Showers. Patchy blowing snow. Snow accumulation around an inch. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of snow 90 percent.

Tonight 12 Dec Keweenaw

Snow Showers. Heavy freezing spray this evening. Patchy blowing snow. Snow accumulation around an inch. Breezy with Lows zero to 5 above. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of snow 80 percent. Wind chill Values as low as 25 below.

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Big Bay Temperature Statistics

December Temperature

Copper Harbor (6.2 miles)

  • Lowest 4 December, 2025

    10.9 °F

  • Average December

    19.9 °F

  • Highest 9 December, 2025

    28.9 °F

Climate (2020–Present)

Copper Harbor (6.2 miles)

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  • Average Low 2020–2025

    38.7 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    51.1 °F
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