Alpharetta, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alpharetta, a city in Fulton County, Georgia.
This Afternoon
74°F
Partly Sunny
Partly sunny, with a high near 74. East wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Alpharetta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Partly Sunny | 15 mph E | 2% |
| Tonight | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 15 mph E | 31% |
| Wednesday | 71°F | Showers And Thunderstorms | 10 to 15 mph SE | 83% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 72% |
| Thursday | 75°F | Chance Rain Showers | 0 to 5 mph SW | 41% |
| Thursday Night | 55°F | Chance Rain Showers | 0 mph | 41% |
| Friday | 73°F | Chance Rain Showers | 0 to 10 mph W | 36% |
| Friday Night | 48°F | Slight Chance Rain Showers then Mostly Clear | 5 mph NW | 17% |
| Saturday | 69°F | Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 43°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 | 40°F | Mostly Clear | 5 to 10 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Alpharetta (34.071, -84.273). Updated through the day.
Growing snapshot for Alpharetta
Last spring frost
Mar 25
First fall frost
Nov 9
Growing season
228 days
Hardiness zone
8a
More local growing data for Alpharetta: nearby ZIP 30009 weather · frost dates · planting calendar · Georgia frost dates
Nearby towns & communities
Atlanta
Chattahoochee Hills
College Park
Duluth
East Point
Fairburn
Hapeville
Johns Creek
Milton
Mountain Park
Palmetto
Roswell
Sandy Springs
South Fulton
Union City
Climate data from the nearest NOAA station, Atlanta Peachtree Ap, Ga (14 mi from Alpharetta). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.