South Twin Lake Weather Forecast

    • 58
    • 86

    Mostly Sunny

    • 59
    • 89

    Chance Thunderstorms

    • 55
    • 86

    Slight Chance Thunderstorms

    • 59
    • 82

    Partly Sunny

    • 57
    • 81

    Partly Sunny

    • 54
    • 78

    Partly Sunny

Today 25 May Mahnomen

Mostly sunny. Highs in the mid 80s. Southwest Winds 5 to 15 Mph.

Tonight 25 May Mahnomen

Mostly clear. Lows in the mid 50s. Northeast Winds around 5 Mph shifting to the east after midnight.

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South Twin Lake Temperature Statistics

May Temperature

Mahnomen County Airport (13 miles)

  • Lowest 1 May, 2026

    25.2 °F

  • Average May

    49.3 °F

  • Highest 15 May, 2026

    78.1 °F

Climate (2021–Present)

Mahnomen County Airport (13 miles)

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  • Average Low 2021–2026

    32.1 °F

  • Average 2021–2026

    41.8 °F

  • Average High 2021–2026

    51.2 °F
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