National Weather Service Forecast for: Greenville MS
Issued by: National Weather Service Jackson, MS
Updated: 4:15 am CDT Jun 22, 2026
 
Overnight

Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 76. South southwest wind around 10 mph, with gusts as high as 20 mph.
Chance
T-storms

 Monday

Monday: Showers and thunderstorms, mainly before 4pm. High near 90. Heat index values as high as 103. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers then
T-storms
Likely
 Monday
Night
Monday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers
Likely then
Chance
T-storms
 Tuesday

Tuesday: Showers and thunderstorms likely, mainly before 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west 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 then
Chance
T-storms
 Tuesday
Night
Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southeast wind around 5 mph becoming calm.
Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Southwest 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.
Showers
Likely

 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. South wind around 5 mph. Chance of precipitation is 50%.
Chance
T-storms then
Chance
Showers
 Thursday

Thursday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. West southwest wind around 5 mph.
Chance
T-storms

 Thursday
Night
Thursday Night: Mostly clear, with a low around 75. South wind around 5 mph.
Mostly Clear
Lo 76 °F Hi 90 °F Lo 73 °F Hi 88 °F Lo 73 °F Hi 90 °F Lo 74 °F Hi 91 °F Lo 75 °F

 

Overnight
 
 A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 76. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
 
 Showers and thunderstorms, mainly before 4pm. High near 90. Heat index values as high as 103. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
 
 Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
 
 Showers and thunderstorms likely, mainly before 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west 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.
Tuesday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southeast wind around 5 mph becoming calm.
Wednesday
 
 Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Southwest 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.
Wednesday Night
 
 A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. South wind around 5 mph. Chance of precipitation is 50%.
Thursday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. West southwest wind around 5 mph.
Thursday Night
 
 Mostly clear, with a low around 75. South wind around 5 mph.
Friday
 
 Mostly sunny, with a high near 92.
Friday Night
 
 Partly cloudy, with a low around 77.
Saturday
 
 Mostly sunny, with a high near 93.
Saturday Night
 
 Mostly clear, with a low around 78.
Sunday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Greenville MS.