Downtown Knoxville Weather Forecast

    • 51
    • 77

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 50
    • 76

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 57
    • 84

    Partly Sunny

    • 63
    • 88

    Slight Chance Rain Showers

Today 25 Sep Knox

Sunny. Highs in the mid 70s. Light Winds.

Tonight 25 Sep Knox

Partly cloudy. Lows around 50. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Downtown Knoxville Temperature Statistics

September Temperature

Knoxville, McGhee Tyson Airport (10.6 miles)

  • Lowest 8 September, 2026

    68.6 °F

  • Average September

    81.7 °F

  • Highest 4 September, 2026

    98.7 °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

    61.3 °F

  • Average High 2021–2026

    71.8 °F
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