Grand Portage Weather Forecast

    • 11
    • 27

    Chance Flurries

    • 19
    • 31

    Mostly Cloudy

    • 24
    • 38

    Partly Sunny

    • 27
    • 37

    Mostly Cloudy

    • 25
    • 35

    Chance Rain/Snow

    • 22
    • 34

    Chance Rain/Snow

Today 27 Mar Southern Cook/North Shore

Mostly cloudy. A chance of Flurries this Morning, then a slight chance of snow Showers this afternoon. Highs in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 20 percent. Wind chill Values as low as zero.

Tonight 27 Mar Southern Cook/North Shore

Partly cloudy with a slight chance of snow Showers in the Evening, then mostly clear after midnight. Lows around 8 above. West Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of snow 20 percent. Wind chill Values as low as 3 below.

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Grand Portage Temperature Statistics

March Temperature

Grand Marais/Cook County Airport (33.6 miles)

  • Lowest 1 March, 2026

    -20.2 °F

  • Average March

    23.9 °F

  • Highest 8 March, 2026

    51.8 °F

Climate (2021–Present)

Grand Marais/Cook County Airport (33.6 miles)

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  • Average Low 2021–2026

    28.7 °F

  • Average 2021–2026

    38.2 °F

  • Average High 2021–2026

    46.7 °F
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