Sucker Bay Weather Forecast

    • 58
    • 65

    Decreasing Clouds

    • 61
    • 64

    Mostly Cloudy

    • 60
    • 68

    Chance Rain Showers

    • 55
    • 63

    Mostly Cloudy

    • 54
    • 61

    Mostly Cloudy

    • 56
    • 62

    Partly Sunny

Today 20 Aug Keweenaw

Mostly cloudy in the Morning, then clearing. Highs in the upper 60s. North Winds 5 to 10 Mph.

Tonight 20 Aug Keweenaw

Mostly clear. Patchy fog. Lows around 58. Light west Winds, becoming southwest after midnight.

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Sucker Bay Temperature Statistics

August Temperature

Copper Harbor (55.3 miles)

  • Lowest 17 August, 2025

    53.1 °F

  • Average August

    71.3 °F

  • Highest 8 August, 2025

    86.6 °F

Climate (2020–Present)

Copper Harbor (55.3 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    50.8 °F
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