National Weather Service Forecast for: 3 Miles NNW Gretna LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 2:01 am CDT Sep 8, 2026
 
Today

Today: A 40 percent chance of showers and thunderstorms, mainly between noon and 5pm. Mostly sunny, with a high near 90. East wind 5 to 15 mph.
Chance
T-storms
 Tonight

Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 79. East wind 5 to 10 mph. Chance of precipitation is 20%.
Slight Chance
T-storms
 Wednesday

Wednesday: A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 89. Northeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms
 Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening.
Chance
T-storms
 Thursday

Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 89. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Showers
Likely then
T-storms
 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 10pm. Low around 77. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Showers then
Slight Chance
T-storms
 Friday

Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 89. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%.
Chance
T-storms then
T-storms
 Friday
Night
Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Slight Chance
T-storms
 Saturday

Saturday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
T-storms
Likely
Hi 90 °F Lo 79 °F Hi 89 °F Lo 78 °F Hi 89 °F Lo 77 °F Hi 89 °F Lo 77 °F Hi 90 °F

 

Today
 
 A 40 percent chance of showers and thunderstorms, mainly between noon and 5pm. Mostly sunny, with a high near 90. East wind 5 to 15 mph.
Tonight
 
 A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 79. East wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
 
 A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 89. Northeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening.
Thursday
 
 Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 89. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
 
 Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 10pm. Low around 77. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Friday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 89. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Saturday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
 
 A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.
Sunday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Monday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the morning.

 

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