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

Louisiana Regional Airport (KREG)

Lat: 30.17°NLon: 90.94°WElev: 14ft.

Partly Cloudy

97°F

36°C

Humidity 70%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 85°F (29°C)
Visibility 10.00 mi
Heat Index130°F (54°C)
Last update 22 Aug 12:15 pm CDT
Extended Forecast for

Donaldsonville LA

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 92. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Sunny and hot, with a high near 95. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 95 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. East wind around 5 mph.

    High: 94 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 92. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Calm wind.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Sunny and hot, with a high near 95. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 73. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. East wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 71. East wind around 5 mph becoming calm.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Northeast wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm.
Thursday
A chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming east around 5 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Donaldsonville LA
 30.11°N 91°W
Last Update:
11:46 am CDT Aug 22, 2025
Forecast Valid:
12pm CDT Aug 22, 2025-6pm CDT Aug 28, 2025
 
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Additional Resources

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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