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

85°F

29°C

Humidity 52%
Wind Speed SE 8 mph
Barometer 29.97 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 16 May 6:15 pm CDT
Extended Forecast for

4 Miles W Donaldsonville LA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. Southeast wind 10 to 15 mph.

    High: 87 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 87 °F

    Partly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 85. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Southeast wind around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. Southeast wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 85. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. Calm wind.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Friday
Showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Donaldsonville LA
 30.09°N 91.06°W
Last Update:
6:25 pm CDT May 16, 2026
Forecast Valid:
6pm CDT May 16, 2026-6pm CDT May 23, 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