Grinnell Memorial Nature Sanctuary Weather Forecast

    • 23
    • 32

    Chance Snow

    • 10
    • 25

    Chance Snow Showers

    • 17
    • 22

    Snow Showers

    • 14
    • 31

    Chance Snow Showers

    • 7
    • 18

    Slight Chance Snow Showers

    • 7
    • 15

    Mostly Cloudy

Today 30 Jan Keweenaw

Much warmer. Cloudy with a slight chance of snow Showers in the Morning, then partly cloudy in the afternoon. Highs around 33. Southwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of snow 20 percent.

Tonight 30 Jan Keweenaw

Cloudy with a 50 percent chance of snow Showers. Lows 13 to 18. Temperature rising into the lower 20s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Grinnell Memorial Nature Sanctuary Temperature Statistics

January Temperature

Copper Harbor (4.3 miles)

  • Lowest 21 January, 2025

    -5.2 °F

  • Average January

    19.5 °F

  • Highest 17 January, 2025

    41.6 °F

Climate (2020–Present)

Copper Harbor (4.3 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    50.7 °F
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