Redwyn Dunes Nature Sanctuary Weather Forecast

    • 55
    • 70

    Mostly Cloudy

    • 52
    • 59

    Mostly Cloudy

    • 53
    • 62

    Mostly Cloudy

    • 57
    • 66

    Rain Showers Likely

    • 58
    • 70

    Chance Thunderstorms

    • 55
    • 72

    Chance Rain Showers

    • 53
    • 65

    Slight Chance Rain Showers

Today 17 Sep Keweenaw

Mostly sunny. Northwest Winds 5 to 10 Mph.

Tonight 17 Sep Keweenaw

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 50s. North Winds 5 to 10 Mph, becoming northeast with Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Redwyn Dunes Nature Sanctuary Temperature Statistics

September Temperature

Copper Harbor (16.2 miles)

  • Lowest 4 September, 2025

    46.9 °F

  • Average September

    59.5 °F

  • Highest 15 September, 2025

    78.1 °F

Climate (2020–Present)

Copper Harbor (16.2 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    50.9 °F
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