Savannah River - Port Wentworth Weather Forecast

    • 70
    • 90

    Partly Sunny

    • 69
    • 88

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

    • 70
    • 86

    Partly Sunny

    • 70
    • 86

    Chance Thunderstorms

    • 70
    • 87

    Chance Thunderstorms

Today 18 Sep Inland Chatham

Sunny. Highs around 90. South Winds around 5 Mph.

Tonight 18 Sep Inland Chatham

Partly cloudy in the Evening, then clearing. Lows in the upper 60s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Savannah River - Port Wentworth Temperature Statistics

September Temperature

Savannah-Hilton Head International Airport (3.1 miles)

  • Lowest 10 September, 2025

    61 °F

  • Average September

    74.4 °F

  • Highest 5 September, 2025

    90 °F

Climate (2020–Present)

Savannah-Hilton Head International Airport (3.1 miles)

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  • Average Low 2020–2025

    58.8 °F

  • Average 2020–2025

    67.9 °F

  • Average High 2020–2025

    78.6 °F
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