Grinnell Memorial Nature Sanctuary Weather Forecast

    • 7
    • 13

    Slight Chance Snow

    • 14
    • 25

    Snow

    • 14
    • 19

    Mostly Cloudy

    • 22
    • 28

    Mostly Cloudy

    • 15
    • 39

    Breezy

    • 8
    • 22

    Blustery

Today 23 Feb Keweenaw

Cloudy. Isolated snow Showers in the morning. Cold with Highs around 12. North Winds 10 to 20 Mph with Gusts up to 30 Mph, becoming northeast 5 to 10 Mph with Gusts up to 20 Mph in the afternoon. Chance of snow 20 percent. Wind chill Values as low as 30 below in the morning.

Tonight 23 Feb Keweenaw

A slight chance of snow after midnight. Cloudy. Lows 3 to 8 above. Temperature rising into the middle teens after midnight. East Winds 5 to 10 Mph, becoming south with Gusts up to 30 Mph after midnight. Chance of snow 20 percent.

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Grinnell Memorial Nature Sanctuary Temperature Statistics

February Temperature

Copper Harbor (4.3 miles)

  • Lowest 7 February, 2026

    3 °F

  • Average February

    24.8 °F

  • Highest 14 February, 2026

    42.1 °F

Climate (2021–Present)

Copper Harbor (4.3 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    51 °F
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