Island Lake Weather Forecast

    • 40
    • 56

    Mostly Cloudy

    • 33
    • 52

    Mostly Cloudy

    • 40
    • 54

    Partly Sunny

    • 34
    • 51

    Partly Sunny

    • 30
    • 46

    Mostly Cloudy

    • 31
    • 48

    Partly Sunny

Today 17 Oct Mahnomen

Mostly sunny late this Morning, then cloudy. Highs in the mid 50s. Breezy. Southwest Winds 15 to 25 Mph.

Tonight 17 Oct Mahnomen

Mostly cloudy. Lows 40 to 45. West Winds up to 10 Mph. Gusts up to 20 Mph in the evening.

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Island Lake Temperature Statistics

October Temperature

Fosston, Fosston Municipal Airport (11.2 miles)

  • Lowest 7 October, 2025

    28.4 °F

  • Average October

    54.9 °F

  • Highest 3 October, 2025

    87.8 °F

Climate (2020–Present)

Fosston, Fosston Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    30.4 °F

  • Average 2020–2025

    40.3 °F

  • Average High 2020–2025

    49.6 °F
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