Knoxville Weather Forecast

    • 54
    • 77

    Mostly Sunny

    • 55
    • 80

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

Today 7 Sep Knox

Sunny. Highs in the mid 70s. North Winds 10 Mph or less.

Tonight 7 Sep Knox

Mostly clear. Lows in the mid 50s. Light Winds.

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Knoxville Temperature Statistics

September Temperature

Knoxville, McGhee Tyson Airport (9.9 miles)

  • Lowest 1 September, 2025

    63 °F
  • Average September

    69.6 °F
  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Knoxville, McGhee Tyson Airport (9.9 miles)

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  • Average Low 2020–2025

    51 °F
  • Average 2020–2025

    60.6 °F
  • Average High 2020–2025

    71.1 °F
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