Alpharetta, GA Weather & Growing Conditions
Today
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10am and 2pm, then showers and thunderstorms likely between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. East wind around 5 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Chance Showers And Thunderstorms | 5 mph E | 57% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 48% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 73% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 65% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 71% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 71% |
| Friday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 45% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 45% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 52% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 41% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 41% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alpharetta, GA
Last spring frost
Mar 25
First fall frost
Nov 9
Growing season
228 days
Hardiness zone
8a
Explore more for Alpharetta, GA: full frost dates · planting calendar · Georgia frost dates
Climate data from the nearest NOAA station, Atlanta Peachtree Ap, Ga (14 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.