John Lake Weather Forecast

    • 42
    • 52

    Chance Rain Showers

    • 30
    • 57

    Rain Showers

    • 26
    • 47

    Mostly Sunny

    • 36
    • 55

    Chance Rain Showers

    • 30
    • 56

    Chance Rain Showers

    • 29
    • 51

    Partly Sunny

    • 32
    • 56

    Mostly Sunny

Today 27 Apr Northern Cook/Northern Lake

Mostly cloudy with a 30 percent chance of Showers. Cooler. Near steady temperature in the upper 40s. South Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 27 Apr Northern Cook/Northern Lake

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Near steady temperature in the mid 40s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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John Lake Temperature Statistics

April Temperature

Grand Marais/Cook County Airport (21.7 miles)

  • Lowest 8 April, 2025

    -2.2 °F

  • Average April

    31.8 °F

  • Highest 23 April, 2025

    55.4 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (21.7 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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