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

Today: Mostly sunny, with a high near 95. Heat index values as high as 103. East wind around 5 mph.
Mostly Sunny

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 75. Calm wind.
Slight Chance
T-storms then
Partly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming east around 5 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Calm wind.
Slight Chance
T-storms then
Mostly Clear
 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Calm wind becoming east around 5 mph in the afternoon.
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 74.
Slight Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny, with a high near 96.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 73.
Mostly Clear

 Independence
Day
Independence Day: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Sunny then
Chance
T-storms
Hi 95 °F Lo 75 °F Hi 95 °F Lo 75 °F Hi 96 °F Lo 74 °F Hi 96 °F Lo 73 °F Hi 94 °F

Hazardous Weather Outlook
 

Today
 
 Mostly sunny, with a high near 95. Heat index values as high as 103. East wind around 5 mph.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 75. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 95. Heat index values as high as 101. Calm wind becoming east around 5 mph.
Wednesday Night
 
 A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
 
 A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74.
Friday
 
 Sunny, with a high near 96.
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 94.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.
Sunday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Gainesville GA.