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

29°C

84°F

Humidity 80%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 25°C (77°F)
Visibility 16 km
Heat Index34°C (94°F)
Last update 12 Jul 8:15 pm CDT
Extended Forecast for

Donaldsonville LA

  • Tonight

    Tonight: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °C

    Mostly Clear

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 3pm and 5pm. Increasing clouds, with a high near 34. Calm wind becoming south 5 to 10 km/h in the afternoon. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.

    High: 34 °C

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °C

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 34. Heat index values as high as 41. Calm wind. Chance of precipitation is 60%.

    High: 34 °C

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °C

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Sunny and hot, with a high near 35. Calm wind. Chance of precipitation is 40%.

    High: 35 °C

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °C

    Mostly Clear

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 35. Calm wind.

    High: 35 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °C

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 24. Calm wind.
Sunday
Showers and thunderstorms likely, mainly between 3pm and 5pm. Increasing clouds, with a high near 34. Calm wind becoming south 5 to 10 km/h in the afternoon. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
Sunday Night
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 24. Calm wind.
Monday
A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 34. Heat index values as high as 41. Calm wind. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 24. Calm wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Sunny and hot, with a high near 35. Calm wind. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 24. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 35. Calm wind.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 24. Calm wind.
Thursday
Showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 34. North wind 5 to 10 km/h becoming east in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 24. East wind 5 to 10 km/h becoming south after midnight.
Friday
Showers and thunderstorms. Partly sunny, with a high near 33. North wind 5 to 10 km/h becoming south in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 24. South wind 5 to 10 km/h.
Saturday
Showers and thunderstorms. Partly sunny, with a high near 34. Southwest wind 5 to 10 km/h.
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ABOUT THIS FORECAST

 
Point Forecast:
Donaldsonville LA
 30.11°N 91°W
Last Update:
6:31 pm CDT Jul 12, 2025
Forecast Valid:
8pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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