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

34°F

1°C

Humidity 93%
Wind Speed NA
Barometer 30.31 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 13 Jan 4:35 am CST
Extended Forecast for

Old Jefferson LA

  • Today

    Today: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. North wind 5 to 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. North wind 5 to 10 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after midnight. Otherwise, clear, with a low around 31. Calm wind.

    Low: 31 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 63. Calm wind becoming southwest around 5 mph in the morning.

    High: 63 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58. Northwest wind around 5 mph.

    High: 58 °F

    Sunny

Detailed Forecast

Today
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59. Calm wind.
Tonight
A 30 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 46. Calm wind.
Wednesday
Partly sunny, with a high near 64. Light and variable wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 39. North wind 5 to 10 mph.
Thursday
Sunny, with a high near 50. North wind 5 to 10 mph.
Thursday Night
Widespread frost, mainly after midnight. Otherwise, clear, with a low around 31. Calm wind.
Friday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 63. Calm wind becoming southwest around 5 mph in the morning.
Friday Night
Partly cloudy, with a low around 42. Southwest wind around 5 mph becoming northwest after midnight.
Saturday
Sunny, with a high near 58. Northwest wind around 5 mph.
Saturday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Northwest wind around 5 mph.
Sunday
Areas of frost. Otherwise, sunny, with a high near 53. Northwest wind around 5 mph.
Sunday Night
Widespread frost. Otherwise, mostly clear, with a low around 31. Northwest wind around 5 mph becoming calm.
M.L.King Day
Widespread frost. Otherwise, mostly sunny, with a high near 54. Calm wind becoming northeast around 5 mph.
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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:
11:31 pm CST Jan 12, 2026
Forecast Valid:
4am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation