National Weather Service Forecast for: Picayune MS
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 6:06 pm CDT Jul 26, 2025
 
Tonight

Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Chance
T-storms then
Mostly Clear
 Sunday

Sunday: A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 74. Calm wind.
Mostly Clear

 Monday

Monday: Sunny and hot, with a high near 99. Heat index values as high as 111. Calm wind becoming north around 5 mph.
Hot

 Monday
Night
Monday Night: Mostly clear, with a low around 77. Calm wind.
Mostly Clear

 Tuesday

Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming north around 5 mph.
Sunny then
Chance
T-storms
 Tuesday
Night
Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Chance
T-storms
 Wednesday

Wednesday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Calm wind becoming west around 5 mph. Chance of precipitation is 70%.
T-storms
Likely
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Chance
T-storms
Lo 74 °F Hi 95 °F Lo 74 °F Hi 99 °F Lo 77 °F Hi 99 °F Lo 75 °F Hi 92 °F Lo 75 °F

Heat Advisory
 

Tonight
 
 A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Sunday
 
 A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
 
 Mostly clear, with a low around 74. Calm wind.
Monday
 
 Sunny and hot, with a high near 99. Heat index values as high as 111. Calm wind becoming north around 5 mph.
Monday Night
 
 Mostly clear, with a low around 77. Calm wind.
Tuesday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming north around 5 mph.
Tuesday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Wednesday
 
 Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Calm wind becoming west around 5 mph. Chance of precipitation is 70%.
Wednesday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Thursday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
 
 A slight chance of showers and thunderstorms. Mostly clear, with a low around 75. South wind around 5 mph becoming calm.
Friday
 
 Showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Saturday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Picayune MS.