Port Allen Weather Forecast

    • 69
    • 90

    Partly Sunny

    • 70
    • 91

    Partly Sunny

    • 71
    • 93

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 73
    • 93

    Partly Sunny

    • 74
    • 92

    Chance Thunderstorms

Today 25 Sep West Baton Rouge

Mostly sunny. Highs around 90. East Winds 5 to 10 Mph.

Tonight 25 Sep West Baton Rouge

Mostly clear. Lows in the upper 60s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Port Allen Temperature Statistics

September Temperature

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (6.8 miles)

  • Lowest 19 September, 2026

    68.6 °F

  • Average September

    82.8 °F

  • Highest 3 September, 2026

    96.7 °F

Climate (2021–2026)

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (6.8 miles)

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  • Average Low 2021–2026

    60.8 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    81.9 °F
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