Isle Royale Weather Forecast

    • 56
    • 73

    Rain Showers

    • 52
    • 66

    Rain Showers

    • 51
    • 61

    Rain Showers Likely

    • 53
    • 66

    Slight Chance Rain Showers

    • 47
    • 62

    Chance Rain Showers

    • 49
    • 59

    Chance Rain Showers

    • 50
    • 61

    Mostly Cloudy

Today 22 Sep Keweenaw

Scattered Showers overnight. Cloudy. Lows around 53. West Winds 5 to 10 Mph becoming northwest overnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Royale Temperature Statistics

September Temperature

Hancock, Houghton County Memorial Airport (58.4 miles)

  • Lowest 5 September, 2019

    46.9 °F
  • Average September

    58.9 °F
  • Highest 18 September, 2019

    82 °F

Climate (2010–Present)

Hancock, Houghton County Memorial Airport (58.4 miles)

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  • Average Low 2010–Present

    34.6 °F
  • Average 2010–Present

    42.4 °F
  • Average High 2010–Present

    50 °F
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