National Weather Service Forecast for: 3 Miles NNW Gretna LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 3:31 pm CST Dec 17, 2025
 
Tonight

Tonight: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog between 8pm and 11pm. Otherwise, cloudy, with a low around 58. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers and
Patchy Fog
then Showers
Likely
 Thursday

Thursday: Showers and thunderstorms likely, mainly before 3pm. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely and
Patchy Fog
then Chance
Showers
 Thursday
Night
Thursday Night: Patchy fog between 9pm and 10pm. Otherwise, partly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Patchy Fog
then Partly
Cloudy

 Friday

Friday: Sunny, with a high near 61. North wind 5 to 10 mph.
Sunny


 Friday
Night
Friday Night: Mostly clear, with a low around 48. Northeast wind around 5 mph becoming southeast after midnight.
Mostly Clear


 Saturday

Saturday: Sunny, with a high near 71. South wind 5 to 10 mph.
Sunny


 Saturday
Night
Saturday Night: Partly cloudy, with a low around 58. South wind around 5 mph.
Partly Cloudy


 Sunday

Sunday: Mostly sunny, with a high near 73. South wind around 5 mph.
Mostly Sunny


 Sunday
Night
Sunday Night: Partly cloudy, with a low around 57. Southeast wind around 5 mph.
Partly Cloudy
Lo 58 °F Hi 74 °F Lo 51 °F Hi 61 °F Lo 48 °F Hi 71 °F Lo 58 °F Hi 73 °F Lo 57 °F

Dense Fog Advisory
 

Tonight
 
 A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog between 8pm and 11pm. Otherwise, cloudy, with a low around 58. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 Showers and thunderstorms likely, mainly before 3pm. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Patchy fog between 9pm and 10pm. Otherwise, partly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
 
 Sunny, with a high near 61. North wind 5 to 10 mph.
Friday Night
 
 Mostly clear, with a low around 48. Northeast wind around 5 mph becoming southeast after midnight.
Saturday
 
 Sunny, with a high near 71. South wind 5 to 10 mph.
Saturday Night
 
 Partly cloudy, with a low around 58. South wind around 5 mph.
Sunday
 
 Mostly sunny, with a high near 73. South wind around 5 mph.
Sunday Night
 
 Partly cloudy, with a low around 57. Southeast wind around 5 mph.
Monday
 
 Mostly sunny, with a high near 69. Southeast wind around 5 mph.
Monday Night
 
 Partly cloudy, with a low around 57. Southeast wind around 5 mph.
Tuesday
 
 Sunny, with a high near 71. East wind around 5 mph.
Tuesday Night
 
 Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.
Wednesday
 
 Mostly sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for 3 Miles NNW Gretna LA.