National Weather Service Forecast for: Picayune MS
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 5:11 am CDT May 26, 2026
 
Today

Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 82. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely then
T-storms
 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph.
Slight Chance
T-storms then
Mostly Cloudy
 Wednesday

Wednesday: Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 86. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
T-storms
Likely
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
 Thursday

Thursday: Showers and possibly a thunderstorm. High near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 100%.
Showers

 Thursday
Night
Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind.
Chance
T-storms

 Friday

Friday: Showers and possibly a thunderstorm. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%.
Showers

 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind.
Chance
T-storms

 Saturday

Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Chance
T-storms then
Showers
Likely
Hi 82 °F Lo 71 °F Hi 86 °F Lo 70 °F Hi 82 °F Lo 69 °F Hi 84 °F Lo 69 °F Hi 86 °F

Flood Watch
 

Today
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 82. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph.
Wednesday
 
 Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 86. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 A chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
 
 Showers and possibly a thunderstorm. High near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 100%.
Thursday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind.
Friday
 
 Showers and possibly a thunderstorm. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind.
Saturday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 70. Calm wind.
Sunday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Calm wind.
Monday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind 5 to 10 mph.

 

Forecast from NOAA-NWS for Picayune MS.