Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East and West

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Louisiana Regional Airport (KREG)

Lat: 30.17°NLon: 90.94°WElev: 14ft.

Mostly Cloudy

91°F

33°C

Humidity 63%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 16 Jul 6:55 pm CDT
Extended Forecast for

Donaldsonville LA

Flood Watch July 16, 07:02pm until July 19, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 16, 07:02pm until July 19, 01:00am

    NOW until 1:00am Sat

    Flood Watch

  • Tonight

    Low: 77 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms after 1pm.  High near 88. North wind around 5 mph becoming northeast in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 10pm, then showers likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am.  Mostly cloudy, with a low around 76. Northeast wind around 5 mph becoming southwest after midnight.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 76 °F

    T-storms
    Likely then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm.  High near 88. South wind 5 to 10 mph.  Chance of precipitation is 90%.

    High: 88 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 10pm, then a slight chance of showers.  Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm.  High near 92. Calm wind becoming south around 5 mph in the morning.  Chance of precipitation is 80%.

    High: 92 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Thunderstorms likely before 7pm.  Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 77. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms after 1pm. High near 88. North wind around 5 mph becoming northeast in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and thunderstorms likely before 10pm, then showers likely between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 76. Northeast wind around 5 mph becoming southwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 88. South wind 5 to 10 mph. Chance of precipitation is 90%.
Friday Night
Showers and thunderstorms likely before 10pm, then a slight chance of showers. Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 92. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Thunderstorms likely before 7pm. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Calm wind becoming northwest around 5 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Donaldsonville LA
 30.11°N 91°W
6:16 pm CDT Jul 16, 2025
7pm CDT Jul 16, 2025-6pm CDT Jul 23, 2025
 
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