Hart Lake Weather Forecast

    • 52
    • 75

    Becoming Sunny

    • 53
    • 78

    Chance Rain Showers

    • 48
    • 73

    Slight Chance Rain Showers

    • 52
    • 74

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 57
    • 80

    Slight Chance Rain Showers

Today 16 Aug Mahnomen

Mostly cloudy in the morning then clearing. Highs in the mid 70s. Northwest Winds 5 to 15 Mph.

Tonight 16 Aug Mahnomen

Mostly clear. Lows 50 to 55. Northwest Winds around 5 Mph shifting to the south after midnight.

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Hart Lake Temperature Statistics

August Temperature

Mahnomen County Airport (10.6 miles)

  • Lowest 5 August, 2026

    48.6 °F

  • Average August

    67.6 °F

  • Highest 2 August, 2026

    85.3 °F

Climate (2021–2026)

Mahnomen County Airport (10.6 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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