National Weather Service Forecast for: 3 Miles NNW Gretna LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 6:45 pm CDT Aug 25, 2026
 
Tonight

Tonight: Mostly clear, with a low around 79. Calm wind becoming west around 5 mph.
Mostly Clear

 Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Heat index values as high as 108. West wind around 5 mph becoming south in the afternoon.
Sunny then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 79. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Chance
Showers

 Thursday

Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 91. Heat index values as high as 105. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 90%.
Showers
Likely then
T-storms
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm. Chance of precipitation is 70%.
Showers
Likely

 Friday

Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 89. West wind around 5 mph. Chance of precipitation is 70%.
Showers
Likely then
T-storms
Likely
 Friday
Night
Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 40%.
Chance
T-storms

 Saturday

Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming northeast around 5 mph.
Chance
T-storms

 Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm.
Partly Cloudy
then Slight
Chance
T-storms
Lo 79 °F Hi 93 °F Lo 79 °F Hi 91 °F Lo 77 °F Hi 89 °F Lo 77 °F Hi 90 °F Lo 78 °F

 

Tonight
 
 Mostly clear, with a low around 79. Calm wind becoming west around 5 mph.
Wednesday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Heat index values as high as 108. West wind around 5 mph becoming south in the afternoon.
Wednesday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 79. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 91. Heat index values as high as 105. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 90%.
Thursday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm. Chance of precipitation is 70%.
Friday
 
 Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 89. West wind around 5 mph. Chance of precipitation is 70%.
Friday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 40%.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming northeast around 5 mph.
Saturday Night
 
 A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm.
Sunday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
Monday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
 
 A chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.

 

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