Port Gibson Weather Forecast

    • 68
    • 93

    Slight Chance Thunderstorms

    • 68
    • 95

    Mostly Sunny

    • 71
    • 93

    Partly Sunny

    • 69
    • 91

    Rain Showers Likely

    • 64
    • 85

    Chance Thunderstorms

    • 62
    • 84

    Mostly Sunny

Today 21 Sep Claiborne

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 90s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 21 Sep Claiborne

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

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Port Gibson Temperature Statistics

September Temperature

Vicksburg Municipal (18.6 miles)

  • Lowest 8 September, 2025

    55.4 °F

  • Average September

    76.3 °F

  • Highest 12 September, 2025

    93.2 °F

Climate (2020–Present)

Vicksburg Municipal (18.6 miles)

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  • Average Low 2020–2025

    56.3 °F

  • Average 2020–2025

    66.3 °F

  • Average High 2020–2025

    77.2 °F
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