Alpharetta, GA Weather & Growing Conditions
Tonight
62°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of rain showers between midnight and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Chance Showers And Thunderstorms | 15 mph E | 31% |
| Wednesday | 71°F | Showers And Thunderstorms | 10 to 15 mph SE | 84% |
| Wednesday Night | 62°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 72% |
| Thursday | 75°F | Chance Rain Showers | 0 to 5 mph SW | 40% |
| Thursday Night | 55°F | Chance Rain Showers | 0 mph | 40% |
| Friday | 73°F | Chance Rain Showers | 0 to 10 mph W | 35% |
| Friday Night | 47°F | Slight Chance Rain Showers then Mostly Clear | 5 to 10 mph NW | 16% |
| Saturday | 68°F | Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 42°F | Partly Cloudy | 0 to 10 mph NW | 2% |
| Sunday | 66°F | Mostly Sunny | 0 to 5 mph NW | 6% |
| Sunday Night | 41°F | Mostly Clear | 5 mph NW | 8% |
| Monday | 65°F | Sunny | 5 to 10 mph NW | 4% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph NW | 1% |
| Tuesday | 67°F | Sunny | 5 to 10 mph NW | 1% |
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 Nov 4, 2026.