Redwyn Dunes Nature Sanctuary Weather Forecast

    • 51
    • 64

    Increasing Clouds

    • 54
    • 60

    Mostly Cloudy

    • 54
    • 63

    Mostly Cloudy

    • 52
    • 60

    Mostly Cloudy

    • 52
    • 59

    Mostly Cloudy

    • 54
    • 61

    Mostly Cloudy

Today 17 Sep Keweenaw

Partly cloudy. Highs in the mid 60s. West Winds 5 to 10 Mph.

Tonight 17 Sep Keweenaw

Mostly clear. Lows around 49. Northwest Winds 5 to 10 Mph, becoming northeast after midnight.

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Redwyn Dunes Nature Sanctuary Temperature Statistics

September Temperature

Copper Harbor (16.2 miles)

  • Lowest 14 September, 2026

    46 °F

  • Average September

    64.2 °F

  • Highest 1 September, 2026

    80.1 °F

Climate (2021–2026)

Copper Harbor (16.2 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    44.4 °F

  • Average High 2021–2026

    50.6 °F
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