Mark Lake Weather Forecast

    • 39
    • 53

    Rain Showers

    • 35
    • 45

    Rain Showers

    • 30
    • 43

    Rain Showers Likely

    • 26
    • 43

    Partly Sunny

    • 31
    • 47

    Partly Sunny

    • 35
    • 50

    Partly Sunny

    • 39
    • 52

    Mostly Cloudy

Today 20 Oct Southern Cook/North Shore

Mostly cloudy with a 50 percent chance of Showers. Near steady temperature around 50. East Winds 10 to 15 Mph with Gusts up to 35 Mph.

Tonight 20 Oct Southern Cook/North Shore

Showers, mainly this evening. Lows around 40. Southeast Winds 10 to 15 Mph, becoming southwest 5 to 10 Mph after midnight. Gusts up to 35 Mph. Chance of rain near 100 percent.

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Mark Lake Temperature Statistics

October Temperature

Grand Marais/Cook County Airport (9.9 miles)

  • Lowest 8 October, 2025

    24.8 °F

  • Average October

    50.5 °F

  • Highest 3 October, 2025

    78.8 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (9.9 miles)

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  • Average Low 2020–2025

    28.9 °F

  • Average 2020–2025

    38.3 °F

  • Average High 2020–2025

    46.9 °F
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