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.

Fair

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 26 Aug 1:35 am CDT
Extended Forecast for

3 Miles W Donaldsonville LA

  • Overnight

    Overnight: Clear, with a steady temperature around 79. Calm wind.

    Low: 79 °F

    Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 111. Calm wind becoming northwest around 5 mph.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 91. Heat index values as high as 105. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph. Chance of precipitation is 60%.

    High: 92 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming northeast around 5 mph.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a steady temperature around 79. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 111. Calm wind becoming northwest around 5 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly clear, with a low around 77. Calm wind.
Thursday
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 91. Heat index values as high as 105. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph. Chance of precipitation is 60%.
Friday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming northeast around 5 mph.
Saturday Night
Mostly clear, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 75. Calm wind.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 75. Calm wind.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Donaldsonville LA
 30.08°N 91.03°W
Last Update:
1:37 am CDT Aug 26, 2026
Forecast Valid:
1am CDT Aug 26, 2026-6pm CDT Sep 1, 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