Harnett Lake Weather Forecast

    • 57
    • 77

    Slight Chance Thunderstorms

    • 53
    • 80

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 59
    • 81

    Rain Showers Likely

    • 48
    • 74

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

Today 31 Jul Central St. Louis

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms late this Morning, then a chance of Thunderstorms this afternoon. Cooler with Highs in the upper 70s. West Winds around 5 Mph, becoming northwest around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 31 Jul Central St. Louis

Mostly cloudy in the Evening, then clearing. Humid with Lows in the upper 50s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harnett Lake Temperature Statistics

July Temperature

Chisholm-Hibbing Airport (8.1 miles)

  • Lowest 22 July, 2026

    42.7 °F

  • Average July

    70.1 °F

  • Highest 13 July, 2026

    93.7 °F

Climate (2021–2026)

Chisholm-Hibbing Airport (8.1 miles)

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  • Average Low 2021–2026

    28 °F

  • Average 2021–2026

    39.7 °F

  • Average High 2021–2026

    50.8 °F
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