Powell Weather Forecast

    • 66
    • 87

    Chance Thunderstorms

    • 66
    • 89

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

    • 68
    • 91

    Rain Showers Likely

    • 68
    • 87

    Chance Rain Showers

    • 68
    • 88

    Chance Thunderstorms

    • 66
    • 89

    Slight Chance Thunderstorms

Today 7 Sep Knox

Partly sunny. A slight chance of Showers and Thunderstorms this Afternoon, then a chance of Showers and Thunderstorms late. Highs in the upper 80s. Light Winds. Chance of rain 50 percent.

Tonight 7 Sep Knox

Partly cloudy this Evening, then clearing. Lows in the mid 60s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Powell Temperature Statistics

September Temperature

Oak Ridge (11.2 miles)

  • Lowest 1 September, 2026

    70.6 °F

  • Average September

    84.8 °F

  • Highest 3 September, 2026

    100.7 °F

Climate (2021–2026)

Oak Ridge (11.2 miles)

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

  • Average Low 2021–2026

    50.9 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    71.7 °F
Get WillyWeather+ to remove ads