Loudon Weather Forecast

    • 48
    • 76

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

    • 62
    • 86

    Partly Sunny

    • 65
    • 87

    Slight Chance Rain Showers

Today 26 Sep Loudon

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

Tonight 26 Sep Loudon

Mostly clear. Lows in the upper 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loudon Temperature Statistics

September Temperature

Knoxville, McGhee Tyson Airport (19.9 miles)

  • Lowest 24 September, 2026

    63 °F

  • Average September

    80.9 °F

  • Highest 4 September, 2026

    98.7 °F

Climate (2021–2026)

Knoxville, McGhee Tyson Airport (19.9 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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