Clear Lake Weather Forecast

    • 59
    • 73

    Mostly Cloudy

    • 62
    • 76

    Partly Sunny

    • 61
    • 76

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 57
    • 71

    Mostly Sunny

    • 60
    • 73

    Partly Sunny

Today 9 Aug Keweenaw

Partly cloudy with a 20 percent chance of Showers. Southeast Winds 5 to 10 Mph.

Tonight 9 Aug Keweenaw

Mostly cloudy. Patchy fog after midnight. Lows around 60. Light south Winds, becoming west after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

August Temperature

Copper Harbor (8.1 miles)

  • Lowest 1 August, 2026

    53.1 °F

  • Average August

    64.4 °F

  • Highest 6 August, 2026

    81 °F

Climate (2021–2026)

Copper Harbor (8.1 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    44.5 °F

  • Average High 2021–2026

    50.6 °F
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