National Weather Service Forecast for: Harvey LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 5:19 am CST Dec 17, 2025
 
Today

Today: A chance of showers before 3pm, then a slight chance of showers after 4pm. Cloudy, with a high near 64. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Chance
Showers

 Tonight

Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Patchy fog between 7pm and 11pm. Otherwise, cloudy, with a low around 59. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Slight Chance
Showers and
Patchy Fog
then Showers
Likely
 Thursday

Thursday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely and
Patchy Fog

 Thursday
Night
Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Slight Chance
Showers then
Partly Cloudy

 Friday

Friday: Sunny, with a high near 60. North wind 5 to 10 mph.
Sunny


 Friday
Night
Friday Night: Mostly clear, with a low around 47. Northeast wind around 5 mph becoming calm.
Mostly Clear


 Saturday

Saturday: Sunny, with a high near 70. 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
Hi 64 °F Lo 59 °F Hi 73 °F Lo 50 °F Hi 60 °F Lo 47 °F Hi 70 °F Lo 58 °F Hi 73 °F

 

Today
 
 A chance of showers before 3pm, then a slight chance of showers after 4pm. Cloudy, with a high near 64. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Tonight
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Patchy fog between 7pm and 11pm. Otherwise, cloudy, with a low around 59. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 A 20 percent chance of showers before midnight. Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
 
 Sunny, with a high near 60. North wind 5 to 10 mph.
Friday Night
 
 Mostly clear, with a low around 47. Northeast wind around 5 mph becoming calm.
Saturday
 
 Sunny, with a high near 70. 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
 
 Mostly cloudy, with a low around 59. South wind around 5 mph becoming calm in the evening.
Monday
 
 Mostly sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the morning.
Monday Night
 
 Partly cloudy, with a low around 58. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
 
 Mostly sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Harvey LA.