Knoxville Weather Forecast

    • 54
    • 68

    Increasing Clouds

    • 60
    • 68

    Mostly Cloudy

    • 59
    • 68

    Rain Showers Likely

    • 59
    • 66

    Chance Rain Showers

    • 60
    • 72

    Partly Sunny

    • 64
    • 74

    Mostly Cloudy

Today 23 Sep Marion

Mostly sunny. Near steady temperature in the upper 60s. East Winds 5 to 10 Mph.

Tonight 23 Sep Marion

Partly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

September Temperature

Knoxville (1.2 miles)

  • Lowest 13 September, 2026

    55.4 °F

  • Average September

    73.2 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

Knoxville (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.8 °F
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