Hennepin Weather Forecast

    • 69
    • 91

    Decreasing Clouds

    • 72
    • 92

    Chance Thunderstorms

    • 66
    • 87

    Slight Chance Thunderstorms

    • 61
    • 80

    Partly Sunny

    • 60
    • 82

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

Today 17 Aug Putnam

Partly sunny. Humid with Highs in the upper 80s. South Winds around 5 Mph with Gusts up to 20 Mph, becoming east in the afternoon.

Tonight 17 Aug Putnam

Partly cloudy. Humid with Lows in the lower 70s. East Winds 5 to 10 Mph.

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Hennepin Temperature Statistics

August Temperature

Illinois Valley Regional Airport (11.8 miles)

  • Lowest 3 August, 2025

    53.6 °F

  • Average August

    73.7 °F

  • Highest 9 August, 2025

    89.6 °F

Climate (2020–Present)

Illinois Valley Regional Airport (11.8 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62 °F
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