Clarkston, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarkston, a city in Dekalb County, Georgia.
Today
87°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10am and 2pm, then showers and thunderstorms likely between 2pm and 5pm, then showers and thunderstorms likely. Mostly sunny. High near 87, with temperatures falling to around 82 in the afternoon. Southeast wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Clarkston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 64% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 54% |
| Wednesday | 87°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 71% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 43% |
| Thursday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 65% |
| Thursday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 65% |
| Friday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 37% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 37% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 42% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 40% |
Forecast source: National Weather Service (api.weather.gov) for Clarkston (33.813, -84.242). Updated through the day.
Growing snapshot for Clarkston
Last spring frost
Mar 25
First fall frost
Nov 9
Growing season
228 days
Hardiness zone
8a
More local growing data for Clarkston: nearby ZIP 30021 weather · frost dates · planting calendar · Georgia frost dates
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Climate data from the nearest NOAA station, Atlanta Peachtree Ap, Ga (5.9 mi from Clarkston). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.