Alpharetta, GA Weather & Growing Conditions
Today
85°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°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 | 5 mph SE | 72% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 64% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 72% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 72% |
| Friday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 47% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 47% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| 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
Apr 4
First fall frost
Nov 4
Growing season
214 days
Hardiness zone
8a
Explore more for Alpharetta, GA: full frost dates · planting calendar · Georgia frost dates
Climate data from the nearest NOAA station, Cumming 2N, Ga (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.