Sumter Weather Forecast

    • 77
    • 96

    Slight Chance Thunderstorms

    • 78
    • 98

    Slight Chance Thunderstorms

    • 78
    • 98

    Chance Thunderstorms

    • 75
    • 97

    Chance Thunderstorms

    • 72
    • 90

    Thunderstorms Likely

    • 73
    • 91

    Chance Thunderstorms

Today 18 Jul Sumter

Mostly sunny. A slight chance of Showers and Thunderstorms. Highs in the mid 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Jul Sumter

Partly cloudy in the Evening, then becoming mostly clear. Humid with Lows in the upper 70s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Sumter Temperature Statistics

July Temperature

Sumter Airport (5 miles)

  • Lowest 5 July, 2025

    69.8 °F

  • Average July

    80.1 °F

  • Highest 7 July, 2025

    95 °F

Climate (2020–Present)

Sumter Airport (5 miles)

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  • Average Low 2020–2025

    53.2 °F

  • Average 2020–2025

    64.2 °F

  • Average High 2020–2025

    76 °F
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