Downtown Knoxville Weather Forecast

    • 24
    • 37

    Becoming Sunny

    • 29
    • 45

    Partly Sunny

    • 33
    • 49

    Partly Sunny

    • 43
    • 55

    Rain Showers Likely

    • 37
    • 55

    Slight Chance Rain Showers

    • 40
    • 54

    Mostly Cloudy

Today 30 Dec Knox

Sunny. Highs in the upper 30s. Light Winds.

Tonight 30 Dec Knox

Partly cloudy in the Evening, then becoming mostly clear. Cold with Lows in the lower 20s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Downtown Knoxville Temperature Statistics

December Temperature

Knoxville, McGhee Tyson Airport (10.6 miles)

  • Lowest 15 December, 2025

    14 °F

  • Average December

    43.9 °F

  • Highest 27 December, 2025

    72 °F

Climate (2020–Present)

Knoxville, McGhee Tyson Airport (10.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    71.2 °F
Get WillyWeather+ to remove ads