Morgan City Weather Forecast

    • 72
    • 89

    Decreasing Clouds

    • 73
    • 89

    Mostly Sunny

    • 73
    • 89

    Mostly Sunny

    • 74
    • 91

    Mostly Sunny

    • 74
    • 91

    Mostly Sunny

    • 74
    • 90

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

Today 17 Sep Upper St. Mary

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs around 90. Temperature falling into the mid 80s this afternoon. Northeast Winds around 5 Mph, becoming southeast this afternoon. Chance of rain 20 percent.

Tonight 17 Sep Upper St. Mary

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Morgan City Temperature Statistics

September Temperature

Patterson Memorial (7.5 miles)

  • Lowest 9 September, 2025

    64.9 °F

  • Average September

    79.8 °F

  • Highest 5 September, 2025

    91.9 °F

Climate (2020–Present)

Patterson Memorial (7.5 miles)

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  • Average Low 2020–2025

    60.3 °F

  • Average 2020–2025

    67.9 °F

  • Average High 2020–2025

    76.8 °F
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