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

Tonight: Clear, with a low around 73. Calm wind.
Clear

 Wednesday

Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Heat index values as high as 109. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunny then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 4am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Slight Chance
T-storms then
Chance
Showers
 Thursday

Thursday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 91. Calm wind. Chance of precipitation is 90%.
Chance
T-storms then
T-storms
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 70%.
Showers
Likely

 Friday

Friday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Calm wind. Chance of precipitation is 70%.
T-storms
Likely

 Friday
Night
Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Chance
T-storms

 Saturday

Saturday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind.
Chance
Showers then
Chance
T-storms
 Saturday
Night
Saturday Night: A slight chance of showers after 1am. Mostly clear, with a low around 72. Calm wind.
Partly Cloudy
then Slight
Chance
Showers
Lo 73 °F Hi 96 °F Lo 74 °F Hi 91 °F Lo 72 °F Hi 92 °F Lo 71 °F Hi 92 °F Lo 72 °F

 

Tonight
 
 Clear, with a low around 73. Calm wind.
Wednesday
 
 A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Heat index values as high as 109. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 A slight chance of showers and thunderstorms, then a chance of showers after 4am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Thursday
 
 A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 91. Calm wind. Chance of precipitation is 90%.
Thursday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 70%.
Friday
 
 Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Calm wind. Chance of precipitation is 70%.
Friday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind.
Saturday Night
 
 A slight chance of showers after 1am. Mostly clear, with a low around 72. Calm wind.
Sunday
 
 A chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 72. Calm wind.
Monday
 
 A chance of showers and thunderstorms. Sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 73. Calm wind.
Tuesday
 
 A chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph.

 

Forecast from NOAA-NWS for Picayune MS.