Siskiwit Lake Weather Forecast

    • 17
    • 24

    Chance Snow Showers

    • 17
    • 20

    Slight Chance Snow Showers

    • 18
    • 23

    Mostly Cloudy

    • 4
    • 22

    Mostly Cloudy

    • 5
    • 9

    Mostly Cloudy

Today 9 Dec Keweenaw

Cloudy. A chance of snow Showers in the morning. Highs in the mid 20s. West Winds 5 to 15 Mph, becoming northwest 5 to 10 Mph in the afternoon. Chance of snow 50 percent.

Tonight 9 Dec Keweenaw

Breezy. Cloudy with a 50 percent chance of snow Showers. Patchy blowing snow after midnight. Lows 15 to 20. Inland, northeast Winds 15 to 25 Mph. Near the Shore, northeast Winds 5 to 10 Mph, increasing to 15 to 25 Mph after midnight.

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Siskiwit Lake Temperature Statistics

December Temperature

Copper Harbor (56.5 miles)

  • Lowest 4 December, 2025

    10.9 °F

  • Average December

    18.4 °F

  • Highest 3 December, 2025

    28 °F

Climate (2020–Present)

Copper Harbor (56.5 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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