National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Fair

78°F

26°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in (1014.2 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 13 Aug 3:56 am CDT
Extended Forecast for

Morgan City LA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 88 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.

    High: 89 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. Calm wind.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 78. Calm wind.

    Low: 78 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Friday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 78. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind.
Saturday Night
Partly cloudy, with a low around 78. Calm wind.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Morgan City LA
 29.7°N 91.2°W
Last Update:
1:46 am CDT Aug 13, 2025
Forecast Valid:
4am CDT Aug 13, 2025-6pm CDT Aug 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation