Loudon Weather Forecast

    • 56
    • 69

    Mostly Cloudy

    • 57
    • 69

    Mostly Cloudy

    • 60
    • 70

    Chance Rain Showers

    • 58
    • 72

    Mostly Cloudy

    • 25
    • 68

    Chance Rain Showers

    • 16
    • 36

    Mostly Sunny

Today 24 Dec Loudon

Mostly cloudy. Highs in the upper 60s. Light Winds.

Tonight 24 Dec Loudon

Mostly cloudy. A slight chance of Showers, then a chance of Showers late. Lows in the mid 50s. Light Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loudon Temperature Statistics

December Temperature

Knoxville, McGhee Tyson Airport (19.9 miles)

  • Lowest 15 December, 2025

    14 °F

  • Average December

    38.6 °F

  • Highest 18 December, 2025

    63 °F

Climate (2020–Present)

Knoxville, McGhee Tyson Airport (19.9 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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