Willow Glen Reservoir Weather Forecast

    • 42
    • 63

    Rain Showers

    • 48
    • 70

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 54
    • 79

    Mostly Sunny

    • 50
    • 79

    Partly Sunny

    • 49
    • 71

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

Today 17 Sep Southeast Johnson County

Cloudy with numerous Showers with isolated Thunderstorms. Near steady temperature in the mid 60s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 17 Sep Southeast Johnson County

Partly cloudy. Lows in the mid 40s. North Winds around 10 Mph early this evening.

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  • Temperature Real-Time

Willow Glen Reservoir Temperature Statistics

September Temperature

Buffalo - Johnson County Airport (26.7 miles)

  • Lowest 6 September, 2025

    43 °F

  • Average September

    64.4 °F

  • Highest 10 September, 2025

    87.1 °F

Climate (2020–Present)

Buffalo - Johnson County Airport (26.7 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    58.8 °F
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