Marysville Weather Forecast

    • 64
    • 88

    Chance Thunderstorms

    • 63
    • 89

    Slight Chance Thunderstorms

    • 63
    • 87

    Rain Showers Likely

    • 60
    • 78

    Chance Rain Showers

    • 59
    • 77

    Chance Thunderstorms

    • 60
    • 79

    Slight Chance Thunderstorms

Today 16 Sep Marion

Mostly cloudy. A slight chance of Showers and Thunderstorms this morning. A chance of Showers and Thunderstorms this afternoon. Humid with Highs in the upper 80s. Southeast Winds around 5 Mph. Chance of rain 30 percent.

Tonight 16 Sep Marion

Partly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the mid 60s. East Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Marysville Temperature Statistics

September Temperature

Knoxville (11.8 miles)

  • Lowest 7 September, 2025

    42.8 °F

  • Average September

    66.1 °F

  • Highest 13 September, 2025

    95 °F

Climate (2020–Present)

Knoxville (11.8 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    62 °F
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