Long Lost Lake Weather Forecast

    • 42
    • 64

    Becoming Sunny

    • 48
    • 65

    Chance Rain Showers

    • 47
    • 67

    Partly Sunny

    • 50
    • 68

    Chance Rain Showers

    • 47
    • 67

    Mostly Cloudy

    • 45
    • 70

    Partly Sunny

Today 15 Sep South Clearwater

Mostly sunny. Highs in the mid 60s. West Winds around 15 Mph.

Tonight 15 Sep South Clearwater

Mostly clear. Lows 35 to 40. Northwest Winds around 5 Mph shifting to the northeast after midnight.

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Long Lost Lake Temperature Statistics

September Temperature

Mahnomen County Airport (24.2 miles)

  • Lowest 13 September, 2026

    37 °F

  • Average September

    65.7 °F

  • Highest 3 September, 2026

    85.5 °F

Climate (2021–2026)

Mahnomen County Airport (24.2 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    41.8 °F

  • Average High 2021–2026

    51.1 °F
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