Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Fair

81°F

27°C

Humidity NA
Wind Speed SW 3 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 23 Aug 12:56 am CDT
Extended Forecast for

3 Miles ENE Morgan City LA

Heat Advisory August 23, 11:00am until August 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 82. West wind around 5 mph.

    Low: 82 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Sunny, with a high near 95. Heat index values as high as 108. Northwest wind around 5 mph becoming calm.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 83. West wind around 5 mph becoming calm  in the evening.

    Low: 83 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 92. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 82. Southwest wind around 5 mph.

    Low: 82 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 92. Calm wind.  Chance of precipitation is 60%.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 82. Southwest wind around 5 mph becoming calm.

    Low: 82 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 80. Southwest wind around 5 mph.

    Low: 80 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 82. West wind around 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 95. Heat index values as high as 108. Northwest wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 83. West wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 82. Southwest wind around 5 mph.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 82. Southwest wind around 5 mph becoming calm.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 80. Southwest wind around 5 mph.
Thursday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 90. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Morgan City LA
 29.72°N 91.15°W
12:45 am CDT Aug 23, 2026
1am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database