Long Island Lake Weather Forecast

    • 31
    • 66

    Sunny

    • 33
    • 58

    Sunny

    • 42
    • 75

    Mostly Sunny

    • 43
    • 64

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

Today 7 May Northern Cook/Northern Lake

Sunny and much cooler. Near steady temperature in the mid 50s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 7 May Northern Cook/Northern Lake

Clear. Areas of frost early this evening. Widespread frost. Cold with Lows in the lower 30s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Long Island Lake Temperature Statistics

May Temperature

Grand Marais/Cook County Airport (21.1 miles)

  • Lowest 5 May, 2025

    39.2 °F

  • Average May

    58.7 °F

  • Highest 5 May, 2025

    66.2 °F

Climate (2020–Present)

Grand Marais/Cook County Airport (21.1 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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