Agate Harbor Weather Forecast

    • 53
    • 63

    Decreasing Clouds

    • 48
    • 58

    Chance Rain Showers

    • 47
    • 54

    Breezy

    • 50
    • 56

    Mostly Cloudy

    • 57
    • 69

    Partly Sunny

    • 50
    • 67

    Chance Rain Showers

    • 45
    • 56

    Chance Rain Showers

Today 6 Oct Keweenaw

Breezy. Mostly cloudy with a 40 percent chance of rain Showers. Highs around 52.

Tonight 6 Oct Keweenaw

Mostly clear. Lows around 50. Northwest Winds 5 to 15 Mph with Gusts up to 25 Mph.

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Agate Harbor Temperature Statistics

October Temperature

Copper Harbor (8.7 miles)

  • Lowest 3 October, 2026

    42.1 °F

  • Average October

    54.1 °F

  • Highest 1 October, 2026

    64.9 °F

Climate (2021–2026)

Copper Harbor (8.7 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    44.3 °F

  • Average High 2021–2026

    50.5 °F
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