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.

Overcast

78°F

26°C

Humidity 47%
Wind Speed SE 9 mph
Barometer 29.97 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 14 Mar 4:55 pm CDT
Extended Forecast for

Old Jefferson LA

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southeast wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Patchy fog between 11pm and 1am. Low around 43. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. Calm wind becoming north around 5 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Calm wind becoming east around 5 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Southeast wind around 5 mph becoming calm.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 81. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Sunday Night
Showers and possibly a thunderstorm. Patchy fog between 11pm and 1am. Low around 43. South wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Northwest wind around 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 34. North wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 56. Calm wind becoming north around 5 mph.
Tuesday Night
Mostly clear, with a low around 38. Calm wind.
Wednesday
Mostly sunny, with a high near 67. Calm wind becoming east around 5 mph.
Wednesday Night
Mostly clear, with a low around 47. Southeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 76. Calm wind.
Thursday Night
Clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 82. Calm wind becoming west around 5 mph.
Friday Night
Clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Jefferson LA
 30.36°N 91.02°W
Last Update:
12:31 pm CDT Mar 14, 2026
Forecast Valid:
5pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation