Decatur, GA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Decatur, a city in Dekalb County, Georgia.

This Afternoon

75°F

Partly Sunny

Partly sunny, with a high near 75. East wind 10 to 15 mph, with gusts as high as 25 mph.

7-day forecast for Decatur

When	Temp	Forecast	Wind	Precip
This Afternoon	75°F	Partly Sunny	10 to 15 mph E	3%
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%

Forecast source: National Weather Service (api.weather.gov) for Decatur (33.771, -84.296). Updated through the day.

Growing snapshot for Decatur

Last spring frost

Mar 25

First fall frost

Nov 9

Growing season

228 days

Hardiness zone

More local growing data for Decatur: nearby ZIP 30030 weather · frost dates · planting calendar · Georgia frost dates

Nearby towns & communities

Avondale Estates Belvedere Park Brookhaven Candler-McAfee Chamblee Clarkston Conley Doraville Druid Hills Dunwoody Gresham Park Lithonia North Decatur North Druid Hills Panthersville Pine Lake Redan Scottdale Stone Mountain Stonecrest Tucker

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Climate data from the nearest NOAA station, Atlanta Peachtree Ap, Ga (7.1 mi from Decatur). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.