Brentwood Weather Forecast

    • 69
    • 93

    Chance Thunderstorms

    • 67
    • 88

    Partly Sunny

    • 69
    • 91

    Mostly Sunny

    • 69
    • 92

    Slight Chance Thunderstorms

    • 62
    • 90

    Mostly Sunny

    • 58
    • 83

    Partly Sunny

    • 57
    • 79

    Partly Sunny

Today 20 Aug Williamson

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. North Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 107.

Tonight 20 Aug Williamson

Partly cloudy. A chance of Thunderstorms with a slight chance of Showers this evening. Lows in the upper 60s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brentwood Temperature Statistics

August Temperature

Nashville, Nashville International Airport (7.5 miles)

  • Lowest 5 August, 2025

    67.6 °F

  • Average August

    81.4 °F

  • Highest 16 August, 2025

    98.7 °F

Climate (2020–Present)

Nashville, Nashville International Airport (7.5 miles)

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  • Average Low 2020–2025

    52.5 °F

  • Average 2020–2025

    62.5 °F

  • Average High 2020–2025

    72.9 °F
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