Knoxville Weather Forecast

    • 37
    • 43

    Rain

    • 13
    • 40

    Chance Snow

    • 30
    • 36

    Partly Sunny

    • 20
    • 43

    Partly Sunny

    • 22
    • 35

    Mostly Cloudy

    • 31
    • 39

    Mostly Cloudy

Today 17 Dec Marion

Mostly sunny. Highs in the mid 40s. Southeast Winds 5 to 10 Mph.

Tonight 17 Dec Marion

Mostly cloudy. Rain after midnight. Lows in the mid 30s. South Winds 15 to 20 Mph, becoming southwest after midnight. Chance of rain 90 percent.

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Knoxville Temperature Statistics

December Temperature

Knoxville (1.2 miles)

  • Lowest 13 December, 2025

    -5.8 °F

  • Average December

    21.3 °F

  • Highest 9 December, 2025

    46.4 °F

Climate (2020–Present)

Knoxville (1.2 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.2 °F
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