National Weather Service Forecast for: Harvey LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 9:32 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. Cloudy, with a steady temperature around 62. 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.
Showers
Likely

 Thursday

Thursday: Showers and thunderstorms likely, mainly before noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers
Likely and
Patchy Fog
then Chance
Showers
 Thursday
Night
Thursday Night: 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.
Partly Cloudy


 Friday

Friday: Sunny, with a high near 61. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny


 Friday
Night
Friday Night: Mostly clear, with a low around 48. Calm wind becoming southeast around 5 mph.
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 57. South wind around 5 mph becoming calm in the evening.
Partly Cloudy


 Sunday

Sunday: Mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the morning.
Mostly Sunny


 Sunday
Night
Sunday Night: Partly cloudy, with a low around 57. East wind around 5 mph.
Partly Cloudy
Lo 62 °F Hi 74 °F Lo 51 °F Hi 61 °F Lo 48 °F Hi 71 °F Lo 57 °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. Cloudy, with a steady temperature around 62. 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 noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 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, with gusts as high as 20 mph.
Friday Night
 
 Mostly clear, with a low around 48. Calm wind becoming southeast around 5 mph.
Saturday
 
 Sunny, with a high near 71. South wind 5 to 10 mph.
Saturday Night
 
 Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
 
 Partly cloudy, with a low around 57. East wind around 5 mph.
Monday
 
 Mostly sunny, with a high near 70. East wind 5 to 10 mph.
Monday Night
 
 Partly cloudy, with a low around 57. East wind around 5 mph.
Tuesday
 
 Sunny, with a high near 72. 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 Harvey LA.