Decatur, GA Weather & Growing Conditions
Tonight
64°F
Chance Showers And Thunderstorms
A slight chance of rain showers between 11pm and 1am, then a chance of showers and thunderstorms between 1am and 2am, then a slight chance of showers and thunderstorms between 2am and 3am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 31% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph SE | 89% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 56% |
| Thursday | 76°F | Chance Rain Showers | 0 to 5 mph SW | 42% |
| Thursday Night | 58°F | Chance Rain Showers | 0 mph | 42% |
| Friday | 74°F | Chance Rain Showers | 0 to 10 mph NW | 40% |
| Friday Night | 51°F | Slight Chance Rain Showers then Mostly Clear | 5 mph NW | 21% |
| Saturday | 69°F | Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 46°F | Partly Cloudy | 5 to 10 mph NW | 2% |
| Sunday | 67°F | Mostly Sunny | 5 mph NW | 7% |
| Sunday Night | 45°F | Partly Cloudy | 5 mph NW | 7% |
| Monday | 66°F | Sunny | 5 to 10 mph NW | 3% |
| Monday Night | 43°F | Mostly Clear | 5 to 10 mph NW | 2% |
| Tuesday | 68°F | Sunny | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Decatur, GA
Last spring frost
Mar 25
First fall frost
Nov 9
Growing season
228 days
Hardiness zone
8a
Explore more for Decatur, GA: full frost dates · planting calendar · Georgia frost dates
Climate data from the nearest NOAA station, Atlanta Peachtree Ap, Ga (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.