Marble Falls Weather Forecast

    • 67
    • 91

    Chance Thunderstorms

    • 64
    • 89

    Mostly Sunny

    • 64
    • 90

    Sunny

    • 66
    • 94

    Mostly Sunny

    • 62
    • 90

    Slight Chance Thunderstorms

    • 60
    • 81

    Chance Rain Showers

Today 20 Aug Newton County Lower Elevations

Mostly sunny. A slight chance of Showers and Thunderstorms. Highs around 90. Northeast Winds around 5 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch.

Tonight 20 Aug Newton County Lower Elevations

Mostly clear. Lows in the upper 60s. Northeast Winds around 5 Mph. Average rainfall less than 1/10 inch.

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Marble Falls Temperature Statistics

August Temperature

Harrison, Boone County Airport (11.2 miles)

  • Lowest 3 August, 2025

    58.6 °F

  • Average August

    79.8 °F

  • Highest 17 August, 2025

    98.7 °F

Climate (2020–Present)

Harrison, Boone County Airport (11.2 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    59.5 °F

  • Average High 2020–2025

    70.3 °F
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