Hart Lake Weather Forecast

    • 71
    • 90

    Mostly Sunny

    • 68
    • 95

    Becoming Sunny

    • 65
    • 88

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 70
    • 90

    Chance Rain Showers

    • 66
    • 88

    Chance Thunderstorms

    • 64
    • 86

    Mostly Sunny

Today 25 Jul Mahnomen

Sunny. Highs 90 to 95. North Winds around 5 Mph.

Tonight 25 Jul Mahnomen

Clear this Evening, then partly cloudy. Lows 70 to 75. South Winds 5 to 15 Mph.

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  • Temperature Real-Time

Hart Lake Temperature Statistics

July Temperature

Mahnomen County Airport (10.6 miles)

  • Lowest 22 July, 2026

    44.6 °F

  • Average July

    72.5 °F

  • Highest 12 July, 2026

    90.1 °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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