Portage Lake Weather Forecast

    • 28
    • 44

    Becoming Sunny

    • 33
    • 49

    Chance Rain

    • 33
    • 56

    Mostly Cloudy

    • 34
    • 53

    Chance Rain Showers

    • 31
    • 54

    Partly Sunny

    • 33
    • 57

    Partly Sunny

    • 39
    • 55

    Chance Rain

Today 21 Apr Northern Cook/Northern Lake

Partly sunny. Near steady temperature in the upper 40s. Northwest Winds around 5 Mph with Gusts up to 25 Mph.

Tonight 21 Apr Northern Cook/Northern Lake

Mostly clear. Lows around 30. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight.

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Portage Lake Temperature Statistics

April Temperature

Grand Marais/Cook County Airport (18 miles)

  • Lowest 8 April, 2025

    -2.2 °F

  • Average April

    30.3 °F

  • Highest 11 April, 2025

    51.8 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (18 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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