National Weather Service Forecast for: La Grange GA
Issued by: National Weather Service Peachtree City, GA
Updated: 2:26 am EDT Jul 18, 2026
 
Today

Today: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 100. Northwest wind around 5 mph.
Slight Chance
T-storms

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. Calm wind.
Slight Chance
T-storms then
Mostly Clear
 Sunday

Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming west around 5 mph.
Sunny then
Chance
T-storms
 Sunday
Night
Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%.
T-storms
Likely then
Chance
Showers
 Monday

Monday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Calm wind becoming south around 5 mph.
Sunny then
Chance
T-storms
 Monday
Night
Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74.
Chance
T-storms then
Mostly Clear
 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Mostly Sunny
then Slight
Chance
T-storms
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 75.
Partly Cloudy

 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Sunny then
Chance
T-storms
Hi 91 °F Lo 73 °F Hi 92 °F Lo 73 °F Hi 91 °F Lo 74 °F Hi 92 °F Lo 75 °F Hi 92 °F

Hazardous Weather Outlook
 

Today
 
 A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 100. Northwest wind around 5 mph.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. Calm wind.
Sunday
 
 A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming west around 5 mph.
Sunday Night
 
 Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%.
Monday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Calm wind becoming south around 5 mph.
Monday Night
 
 A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Tuesday Night
 
 Partly cloudy, with a low around 75.
Wednesday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 72.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Thursday Night
 
 A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for La Grange GA.