Great Sand Bay Weather Forecast

    • 61
    • 69

    Mostly Sunny

    • 65
    • 71

    Partly Sunny

    • 65
    • 72

    Rain Showers

    • 64
    • 74

    Chance Rain Showers

    • 57
    • 69

    Windy

    • 57
    • 66

    Partly Sunny

    • 60
    • 70

    Partly Sunny

Today 5 Sep Keweenaw

Sunny, warmer. Near steady temperature around 70. East Winds 5 to 10 Mph.

Tonight 5 Sep Keweenaw

Mostly clear. Lows around 57. Light southeast Winds.

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  • Temperature Real-Time

Great Sand Bay Temperature Statistics

September Temperature

Copper Harbor (17.4 miles)

  • Lowest 3 September, 2026

    55 °F

  • Average September

    66.6 °F

  • Highest 1 September, 2026

    80.1 °F

Climate (2021–2026)

Copper Harbor (17.4 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    44.4 °F

  • Average High 2021–2026

    50.5 °F
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