Copper Harbor Weather Forecast

    • 55
    • 66

    Thunderstorms

    • 59
    • 61

    Chance Thunderstorms

    • 63
    • 70

    Chance Thunderstorms

    • 61
    • 69

    Chance Thunderstorms

    • 57
    • 67

    Chance Thunderstorms

    • 55
    • 63

    Chance Thunderstorms

    • 54
    • 60

    Mostly Cloudy

Today 20 Sep Keweenaw

Breezy. Mostly cloudy with numerous Showers and scattered Thunderstorms. Highs 67 to 72. Southeast Winds 15 to 25 Mph becoming south in the afternoon. Chance of rain 60 percent.

Tonight 20 Sep Keweenaw

Scattered Showers and isolated Thunderstorms in the evening. Areas of fog. Mostly clear. Lows around 52. West Winds 5 to 10 Mph becoming light overnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Copper Harbor Temperature Statistics

September Temperature

Copper Harbor (0.6 miles)

  • Lowest 8 September, 2017

    42.1 °F
  • Average September

    59.4 °F
  • Highest 16 September, 2017

    77 °F

Climate (2010–Present)

Copper Harbor (0.6 miles)

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  • Average Low 2010–Present

    36.8 °F
  • Average 2010–Present

    42.7 °F
  • Average High 2010–Present

    48.2 °F
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