Three Island Lake Weather Forecast

    • 56
    • 78

    Increasing Clouds

    • 64
    • 84

    Rain Showers Likely

    • 56
    • 77

    Rain Showers Likely

    • 57
    • 76

    Slight Chance Rain Showers

    • 58
    • 83

    Slight Chance Thunderstorms

    • 55
    • 80

    Chance Rain Showers

Today 9 Jul North Itasca

Sunny. Highs in the upper 70s. Southeast Winds around 5 Mph.

Tonight 9 Jul North Itasca

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Southeast Winds around 5 Mph.

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Three Island Lake Temperature Statistics

July Temperature

Bigfork Municipal Airport (13.7 miles)

  • Lowest 3 July, 2025

    50 °F

  • Average July

    71.2 °F

  • Highest 4 July, 2025

    91.4 °F

Climate (2020–Present)

Bigfork Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    30.7 °F

  • Average 2020–2025

    42 °F

  • Average High 2020–2025

    52.4 °F
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