Great Sand Bay Weather Forecast

    • 44
    • 55

    Becoming Sunny

    • 46
    • 57

    Mostly Sunny

    • 46
    • 61

    Partly Sunny

    • 45
    • 56

    Mostly Sunny

    • 46
    • 59

    Mostly Sunny

    • 47
    • 58

    Partly Sunny

Today 27 May Keweenaw

Sunny. Highs in the upper 60s. Northeast Winds 5 to 10 Mph.

Tonight 27 May Keweenaw

Clear. Lows around 44. Northeast Winds 5 to 10 Mph, becoming light east after midnight.

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Great Sand Bay Temperature Statistics

May Temperature

Copper Harbor (17.4 miles)

  • Lowest 8 May, 2026

    30 °F

  • Average May

    44.4 °F

  • Highest 15 May, 2026

    79 °F

Climate (2021–Present)

Copper Harbor (17.4 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    44.5 °F

  • Average High 2021–2026

    50.7 °F
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