National Weather Service Forecast for: Newnan GA
Issued by: National Weather Service Peachtree City, GA
Updated: 2:26 am EDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 76. Calm wind.
Mostly Clear

 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 95. Heat index values as high as 105. Calm wind becoming east around 5 mph.
Sunny then
Chance
T-storms
 Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Calm wind.
Chance
T-storms then
Mostly Clear
 Wednesday

Wednesday: A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming east around 5 mph.
Mostly Sunny
then Slight
Chance
T-storms
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 74. Calm wind.
Partly Cloudy

 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Sunny then
Slight Chance
T-storms
 Thursday
Night
Thursday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73.
Slight Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny, with a high near 94.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 73.
Mostly Clear
Lo 76 °F Hi 95 °F Lo 75 °F Hi 93 °F Lo 74 °F Hi 94 °F Lo 73 °F Hi 94 °F Lo 73 °F

Hazardous Weather Outlook
Heat Advisory
 

Overnight
 
 Mostly clear, with a low around 76. Calm wind.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 95. Heat index values as high as 105. Calm wind becoming east around 5 mph.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Calm wind.
Wednesday
 
 A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming east around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 74. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Thursday Night
 
 A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73.
Friday
 
 Sunny, with a high near 94.
Friday Night
 
 Mostly clear, with a low around 73.
Independence Day
 
 A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Newnan GA.