Downtown Knoxville Weather Forecast

    • 70
    • 91

    Rain Showers Likely

    • 69
    • 89

    Slight Chance Thunderstorms

    • 67
    • 89

    Partly Sunny

    • 63
    • 87

    Mostly Sunny

    • 63
    • 87

    Partly Sunny

    • 66
    • 88

    Slight Chance Thunderstorms

    • 69
    • 91

    Chance Thunderstorms

Today 20 Aug Knox

Partly sunny with a chance of Showers and Thunderstorms. Highs around 90. Light Winds. Chance of rain 50 percent.

Tonight 20 Aug Knox

Mostly cloudy. Showers in the evening. A chance of Thunderstorms. A chance of Showers after midnight. Lows around 70. Light Winds. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Downtown Knoxville Temperature Statistics

August Temperature

Knoxville, McGhee Tyson Airport (10.6 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    80.5 °F

  • Highest 17 August, 2026

    96.1 °F

Climate (2021–2026)

Knoxville, McGhee Tyson Airport (10.6 miles)

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  • Average Low 2021–2026

    51.4 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    71.7 °F
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