Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Thunderstorm Rain Fog/Mist

74°F

23°C

Humidity 100%
Wind Speed N 13 G 20 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 74°F (23°C)
Visibility 6.00 mi
Last update 27 Aug 6:56 am CDT
Extended Forecast for

3 Miles ESE Morgan City LA

  • Today

    Today: Showers and thunderstorms, mainly before 5pm.  High near 88. Heat index values as high as 103. Calm wind becoming northwest around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 75. Calm wind.  Chance of precipitation is 40%.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 87. Heat index values as high as 101. Calm wind becoming north around 5 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 7pm.  Partly cloudy, with a low around 74. Calm wind.  Chance of precipitation is 60%.

    Low: 74 °F

    T-storms
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 90. Calm wind becoming northeast around 5 mph.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph.  Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Today
Showers and thunderstorms, mainly before 5pm. High near 88. Heat index values as high as 103. Calm wind becoming northwest around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 87. Heat index values as high as 101. Calm wind becoming north around 5 mph.
Friday Night
Showers and thunderstorms likely before 7pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind becoming northeast around 5 mph.
Saturday Night
Mostly clear, with a low around 75. Calm wind.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Calm wind.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Morgan City LA
 29.68°N 91.15°W
6:45 am CDT Aug 27, 2026
7am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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