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

Hazardous Weather Conditions

Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Partly Cloudy

84°F

29°C

Humidity 77%
Wind Speed SW 12 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 22 May 4:56 pm CDT
Extended Forecast for

Morgan City LA

Flood Watch May 22, 07:00pm until May 25, 07:00pm
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. Southwest wind around 5 mph.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming southeast after midnight.

    Low: 73 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly between 2pm and 3pm. Mostly sunny, with a high near 82. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 79. Southeast wind around 5 mph. Chance of precipitation is 90%.

    High: 79 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 72. South wind around 5 mph becoming east in the evening. Chance of precipitation is 80%.

    Low: 72 °F

    Showers

  • Memorial Day

    Memorial Day: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 79. South wind around 5 mph. Chance of precipitation is 90%.

    High: 79 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81. Southwest wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming southeast after midnight.
Saturday
Showers and thunderstorms likely, mainly between 2pm and 3pm. Mostly sunny, with a high near 82. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm. High near 79. Southeast wind around 5 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 72. South wind around 5 mph becoming east in the evening. Chance of precipitation is 80%.
Memorial Day
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 79. South wind around 5 mph. Chance of precipitation is 90%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Tuesday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.
Wednesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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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:
2:46 pm CDT May 22, 2026
Forecast Valid:
5pm CDT May 22, 2026-6pm CDT May 29, 2026
 
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