National Weather Service Forecast for: Roswell GA
Issued by: National Weather Service Peachtree City, GA
Updated: 12:01 pm EDT May 26, 2026
 
This
Afternoon
This Afternoon: Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 80. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms

 Tonight

Tonight: A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
 Wednesday
Night
Wednesday Night: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm. Chance of precipitation is 60%.
Showers
Likely then
Mostly Cloudy
 Thursday

Thursday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Friday

Friday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Chance
Showers then
Showers
Likely
 Friday
Night
Friday Night: Showers and possibly a thunderstorm. Low around 64. Chance of precipitation is 80%.
Showers

 Saturday

Saturday: Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Showers
Hi 80 °F Lo 66 °F Hi 83 °F Lo 66 °F Hi 84 °F Lo 66 °F Hi 80 °F Lo 64 °F Hi 77 °F

Hazardous Weather Outlook
Flood Watch
 

This Afternoon
 
 Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 80. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Wednesday
 
 A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night
 
 Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
 
 A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 40%.
Thursday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
 
 A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Friday Night
 
 Showers and possibly a thunderstorm. Low around 64. Chance of precipitation is 80%.
Saturday
 
 Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Saturday Night
 
 Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 61. Chance of precipitation is 80%.
Sunday
 
 Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Sunday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Roswell GA.