Alpharetta, GA Weather & Growing Conditions
This Afternoon
93°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny. High near 93, with temperatures falling to around 89 in the afternoon. Heat index values as high as 97. Northeast wind around 5 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Chance Showers And Thunderstorms | 5 mph NE | 31% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 5 mph NE | 42% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 19% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph NE | 20% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 34% |
| Monday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph E | 62% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 5 mph E | 72% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 5 to 10 mph E | 72% |
| Wednesday | 80°F | Chance Showers And Thunderstorms | 10 mph E | 45% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 45% |
| Thursday | 78°F | Partly Sunny | 5 to 10 mph NE | 13% |
| Thursday Night | 61°F | Partly Cloudy | 5 mph NE | 12% |
| Friday | 79°F | Mostly Sunny | 5 mph NE | 9% |
| Friday Night | 59°F | Mostly Clear | 5 mph N | 9% |
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 Sep 19, 2026.