Isle Royale National Park Weather Forecast

    • 38
    • 50

    Mostly Sunny

    • 37
    • 52

    Rain Showers

    • 33
    • 45

    Rain Showers

    • 35
    • 41

    Rain Showers

    • 35
    • 44

    Rain Showers Likely

    • 36
    • 50

    Slight Chance Rain Showers

Today 25 Apr Keweenaw

Sunny. Much warmer with Highs in the lower 50s. South Winds 5 to 10 Mph, becoming southeast this afternoon.

Tonight 25 Apr Keweenaw

Clear. Lows around 36. Southeast Winds 5 to 15 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Royale National Park Temperature Statistics

April Temperature

Copper Harbor (60.3 miles)

  • Lowest 2 April, 2024

    22.7 °F

  • Average April

    41.3 °F

  • Highest 22 April, 2024

    64.9 °F

Climate (2019–Present)

Copper Harbor (60.3 miles)

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  • Average Low 2019–2024

    38.1 °F

  • Average 2019–2024

    43.9 °F

  • Average High 2019–2024

    49.8 °F
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