Knoxville Weather Forecast

    • 60
    • 80

    Rain Showers Likely

    • 63
    • 79

    Chance Thunderstorms

    • 66
    • 86

    Mostly Cloudy

    • 64
    • 84

    Rain Showers

    • 62
    • 79

    Rain Showers

    • 56
    • 80

    Chance Thunderstorms

Today 26 Apr Southern Johnson County

Mostly sunny early this Morning, then becoming mostly cloudy. A chance of Showers this afternoon. Highs around 80. Northeast Winds around 5 Mph, becoming east this afternoon. Chance of rain 40 percent. Average rainfall less than 1/10 inch.

Tonight 26 Apr Southern Johnson County

A chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 70 percent. Average rainfall 1/4 to 1/2 inch.

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Knoxville Temperature Statistics

April Temperature

Russelville Municipal Airport (17.4 miles)

  • Lowest 8 April, 2025

    38.6 °F

  • Average April

    63.3 °F

  • Highest 13 April, 2025

    88.6 °F

Climate (2020–Present)

Russelville Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    62.2 °F

  • Average High 2020–2025

    73.8 °F
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