Isle Royale Weather Forecast

    • 18
    • 27

    Blowing Snow

    • 18
    • 24

    Mostly Cloudy

    • 16
    • 25

    Mostly Cloudy

    • 12
    • 22

    Slight Chance Snow

    • 14
    • 23

    Mostly Cloudy

    • 14
    • 24

    Mostly Cloudy

Today 27 Nov Keweenaw

Cloudy. Numerous snow Showers in the Morning, then scattered snow Showers in the afternoon. Patchy blowing snow. Snow accumulation up to 1 inch. Total snow accumulation 5 to 8 Inches. Windy. Near steady temperature in the upper 20s. North Winds 20 to 30 Mph. Gusts up to 50 Mph, decreasing to 40 Mph in the afternoon. Chance of snow 70 percent.

Tonight 27 Nov Keweenaw

Breezy. Cloudy with isolated snow Showers. Patchy blowing snow. Lows around 19. North Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of snow 20 percent.

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Isle Royale Temperature Statistics

November Temperature

Copper Harbor (58.4 miles)

  • Lowest 18 November, 2025

    23 °F

  • Average November

    39 °F

  • Highest 4 November, 2025

    52 °F

Climate (2020–Present)

Copper Harbor (58.4 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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