The weather in Alpharetta in August is hot. The average temperatures are between 21°C and 32°C.
You can expect about 3 to 8 days of rain in Alpharetta during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Alpharetta in August 2025.
If you’re planning to visit Alpharetta in the near future, we highly recommend that you review the 14 day weather forecast for Alpharetta before you arrive.
Temperatures
32° / 21°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
155
mm
Sun Hours
11.0
Hrs
