Grangeburg Weather Forecast

    • 74
    • 94

    Chance Rain Showers

    • 74
    • 94

    Chance Thunderstorms

    • 73
    • 92

    Thunderstorms Likely

    • 73
    • 89

    Thunderstorms Likely

    • 72
    • 88

    Chance Thunderstorms

    • 69
    • 91

    Slight Chance Thunderstorms

Today 20 Aug Houston

Sunny. Patchy fog this morning. A chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 20 Aug Houston

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. Northwest Winds around 5 Mph. Chance of rain 40 percent.

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Grangeburg Temperature Statistics

August Temperature

Marianna Municipal Airport (11.8 miles)

  • Lowest 8 August, 2025

    71.7 °F

  • Average August

    82.3 °F

  • Highest 15 August, 2025

    96.7 °F

Climate (2020–Present)

Marianna Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    58 °F

  • Average 2020–2025

    68.4 °F

  • Average High 2020–2025

    79.6 °F
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