Three Island Lake County Park Weather Forecast

    • 44
    • 63

    Increasing Clouds

    • 55
    • 72

    Mostly Cloudy

    • 51
    • 75

    Partly Sunny

    • 52
    • 76

    Partly Sunny

    • 57
    • 74

    Mostly Cloudy

    • 58
    • 78

    Chance Rain Showers

Today 7 Sep South Beltrami

Patchy fog this morning. Sunny. Highs in the mid 60s. West Winds up to 10 Mph.

Tonight 7 Sep South Beltrami

Mostly clear. Lows in the mid 40s. South Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Three Island Lake County Park Temperature Statistics

September Temperature

Bemidji (10.6 miles)

  • Lowest 4 September, 2025

    40.1 °F

  • Average September

    55.7 °F

  • Highest 1 September, 2025

    78.6 °F

Climate (2020–Present)

Bemidji (10.6 miles)

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  • Average Low 2020–2025

    30.3 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    50.8 °F
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