Isle Royale Weather Forecast

    • 25
    • 32

    Chance Snow Showers

    • 11
    • 29

    Snow Showers Likely

    • 23
    • 26

    Chance Snow Showers

    • 26
    • 32

    Mostly Cloudy

    • 7
    • 32

    Chance Snow Showers

    • 9
    • 15

    Mostly Cloudy

Today 9 Jan Keweenaw

Patchy blowing snow early this morning. Mostly cloudy. Near steady temperature around 30. North Winds 15 to 20 Mph, becoming northwest 10 to 20 Mph this afternoon. Gusts up to 35 Mph.

Tonight 9 Jan Keweenaw

A slight chance of snow Showers in the Evening, then a chance of snow Showers after midnight. Mostly cloudy. Lows around 25. West Winds 5 to 10 Mph, becoming south after midnight. Chance of snow 50 percent.

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Isle Royale Temperature Statistics

January Temperature

Copper Harbor (58.4 miles)

  • Lowest 1 January, 2026

    10 °F

  • Average January

    21.6 °F

  • Highest 7 January, 2026

    35.1 °F

Climate (2021–Present)

Copper Harbor (58.4 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    51 °F
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