Alpharetta, GA Weather & Growing Conditions
Tonight
63°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of rain showers between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. 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 | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 15 mph E | 30% |
| Wednesday | 71°F | Showers And Thunderstorms | 10 to 15 mph SE | 84% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph S | 76% |
| Thursday | 75°F | Chance Rain Showers | 0 to 5 mph SW | 41% |
| Thursday Night | 56°F | Chance Rain Showers | 0 mph | 41% |
| Friday | 73°F | Chance Rain Showers | 0 to 10 mph W | 37% |
| Friday Night | 48°F | Slight Chance Rain Showers then Mostly Clear | 5 to 10 mph NW | 17% |
| Saturday | 69°F | Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 44°F | Partly Cloudy | 0 to 10 mph NW | 2% |
| Sunday | 66°F | Mostly Sunny | 0 to 5 mph NW | 6% |
| Sunday Night | 42°F | Mostly Clear | 5 mph NW | 8% |
| Monday | 65°F | Sunny | 5 to 10 mph NW | 4% |
| Monday Night | 41°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
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 Nov 4, 2026.