Alton Lake Weather Forecast

    • 28
    • 46

    Mostly Cloudy

    • 39
    • 63

    Mostly Sunny

    • 40
    • 65

    Mostly Sunny

    • 41
    • 66

    Chance Rain

    • 37
    • 67

    Partly Sunny

    • 35
    • 59

    Partly Sunny

Today 2 May Northern Cook/Northern Lake

Cloudy. Rain Showers likely with a chance of snow Showers in the morning. Little or no snow accumulation. Cooler with Highs in the upper 40s. North Winds 5 to 10 Mph. Chance of precipitation 70 percent.

Tonight 2 May Northern Cook/Northern Lake

Partly cloudy in the Evening, then clearing. Cold with Lows in the upper 20s. Northwest Winds around 5 Mph, becoming southwest after midnight.

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Alton Lake Temperature Statistics

May Temperature

Grand Marais/Cook County Airport (24.2 miles)

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Climate (2020–Present)

Grand Marais/Cook County Airport (24.2 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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