Redwyn Dunes Nature Sanctuary Weather Forecast

    • 59
    • 68

    Mostly Sunny

    • 63
    • 80

    Rain Showers

    • 55
    • 69

    Breezy

    • 54
    • 62

    Chance Rain Showers

    • 56
    • 66

    Rain Showers Likely

    • 54
    • 64

    Breezy

Today 10 Sep Keweenaw

Sunny. Highs in the upper 60s. Northwest Winds 5 to 10 Mph, becoming west in the afternoon.

Tonight 10 Sep Keweenaw

Mostly clear. Lows 56 to 61. South Winds 5 to 10 Mph, becoming southwest with Gusts up to 30 Mph after midnight.

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Redwyn Dunes Nature Sanctuary Temperature Statistics

September Temperature

Copper Harbor (16.2 miles)

  • Lowest 5 September, 2026

    54 °F

  • Average September

    66 °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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