Grand Portage Weather Forecast

    • 36
    • 59

    Mostly Sunny

    • 40
    • 52

    Increasing Clouds

    • 43
    • 55

    Partly Sunny

    • 49
    • 56

    Rain Showers

    • 49
    • 61

    Chance Rain Showers

    • 42
    • 58

    Chance Rain Showers

    • 40
    • 52

    Chance Rain Showers

Today 13 Oct Southern Cook/North Shore

Sunny. Near steady temperature in the mid 50s. West Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 13 Oct Southern Cook/North Shore

Mostly clear late this Evening, then becoming partly cloudy. Cooler with Lows in the lower 30s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Grand Portage Temperature Statistics

October Temperature

Grand Marais/Cook County Airport (33.6 miles)

  • Lowest 8 October, 2025

    24.8 °F

  • Average October

    52.4 °F

  • Highest 3 October, 2025

    78.8 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (33.6 miles)

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  • Average Low 2020–2025

    28.9 °F

  • Average 2020–2025

    38.2 °F

  • Average High 2020–2025

    46.8 °F
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