Sumner Weather Forecast

    • 66
    • 86

    Chance Thunderstorms

    • 67
    • 87

    Slight Chance Thunderstorms

    • 70
    • 87

    Slight Chance Thunderstorms

    • 66
    • 90

    Chance Thunderstorms

    • 62
    • 82

    Chance Thunderstorms

    • 65
    • 84

    Slight Chance Thunderstorms

Today 8 Jul Chariton

Partly sunny. A chance of Showers and Thunderstorms late this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 8 Jul Chariton

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the mid 60s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Sumner Temperature Statistics

July Temperature

Chillicothe, Chillicothe Agri-Science Center (21.1 miles)

  • Lowest 1 July, 2025

    61 °F

  • Average July

    78.3 °F

  • Highest 4 July, 2025

    90 °F

Climate (2020–Present)

Chillicothe, Chillicothe Agri-Science Center (21.1 miles)

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  • Average Low 2020–2025

    45.2 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    66.4 °F
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