National Weather Service Forecast for: 3 Miles NNW Gretna LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 9:42 pm CST Jan 22, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 58. Calm wind.
Mostly Cloudy

 Friday

Friday: Mostly cloudy, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.
Mostly Cloudy

 Friday
Night
Friday Night: A slight chance of showers between 3am and 4am. Cloudy, with a low around 54. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
 Saturday

Saturday: Showers, with thunderstorms also possible after 3pm. High near 68. East wind around 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Chance
Showers then
Showers
 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Showers

 Sunday

Sunday: Showers and possibly a thunderstorm. High near 67. South wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 100%.
Showers then
Showers
Likely
 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 27. Northwest wind around 15 mph, with gusts as high as 30 mph.
Mostly Cloudy

 Monday

Monday: Sunny, with a high near 43. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunny

 Monday
Night
Monday Night: Widespread frost after 11pm. Otherwise, mostly clear, with a low around 29. North wind 5 to 10 mph.
Frost
Lo 58 °F Hi 67 °F Lo 54 °F Hi 68 °F Lo 52 °F Hi 67 °F Lo 27 °F Hi 43 °F Lo 29 °F

Dense Fog Advisory
 

Tonight
 
 Mostly cloudy, with a low around 58. Calm wind.
Friday
 
 Mostly cloudy, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.
Friday Night
 
 A slight chance of showers between 3am and 4am. Cloudy, with a low around 54. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
 
 Showers, with thunderstorms also possible after 3pm. High near 68. East wind around 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Saturday Night
 
 Showers and possibly a thunderstorm. Low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
 
 Showers and possibly a thunderstorm. High near 67. South wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 100%.
Sunday Night
 
 Mostly cloudy, with a low around 27. Northwest wind around 15 mph, with gusts as high as 30 mph.
Monday
 
 Sunny, with a high near 43. North wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
 
 Widespread frost after 11pm. Otherwise, mostly clear, with a low around 29. North wind 5 to 10 mph.
Tuesday
 
 Widespread frost before 10am. Otherwise, sunny, with a high near 50. Northeast wind around 5 mph.
Tuesday Night
 
 Partly cloudy, with a low around 39. Calm wind becoming north around 5 mph.
Wednesday
 
 A slight chance of showers. Mostly sunny, with a high near 59. North wind around 5 mph.
Wednesday Night
 
 A slight chance of showers. Areas of frost. Otherwise, partly cloudy, with a low around 42. North wind 5 to 10 mph.
Thursday
 
 Sunny, with a high near 55. North wind 5 to 10 mph.

 

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