Morgan City Weather Forecast

    • 74
    • 86

    Partly Sunny

    • 75
    • 87

    Mostly Cloudy

    • 76
    • 88

    Partly Sunny

    • 76
    • 88

    Slight Chance Thunderstorms

    • 78
    • 88

    Chance Thunderstorms

Today 25 Sep Upper St. Mary

Mostly sunny. Highs in the upper 80s. Temperature falling into the mid 80s this afternoon. East Winds 5 to 10 Mph.

Tonight 25 Sep Upper St. Mary

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 70s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Morgan City Temperature Statistics

September Temperature

Patterson Memorial (7.5 miles)

  • Lowest 18 September, 2026

    71.6 °F

  • Average September

    81.3 °F

  • Highest 23 September, 2026

    93.9 °F

Climate (2021–2026)

Patterson Memorial (7.5 miles)

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  • Average Low 2021–2026

    60.6 °F

  • Average 2021–2026

    68.5 °F

  • Average High 2021–2026

    77.4 °F
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