Marietta, GA Weather & Growing Conditions
Overnight
63°F
Chance Showers And Thunderstorms
A slight chance of rain showers before 4am, then a chance of showers and thunderstorms. Cloudy, with a low around 63. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Chance Showers And Thunderstorms | 15 mph SE | 46% |
| Wednesday | 70°F | Showers And Thunderstorms | 10 to 15 mph SE | 89% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 66% |
| Thursday | 75°F | Slight Chance Rain Showers | 0 to 5 mph SW | 19% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph NW | 14% |
| Friday | 72°F | Sunny | 5 to 10 mph NW | 14% |
| Friday Night | 47°F | Clear | 5 to 10 mph NW | 2% |
| Saturday | 66°F | Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 41°F | Partly Cloudy | 0 to 10 mph NW | 0% |
| Sunday | 65°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 40°F | Mostly Clear | 5 mph NW | 1% |
| Monday | 65°F | Sunny | 5 to 10 mph NW | 1% |
| Monday Night | 41°F | Mostly Clear | 0 to 5 mph NW | 1% |
| Tuesday | 67°F | Sunny | 0 to 5 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marietta, GA
Last spring frost
Mar 27
First fall frost
Nov 7
Growing season
225 days
Hardiness zone
8a
Explore more for Marietta, GA: full frost dates · planting calendar · Georgia frost dates
Climate data from the nearest NOAA station, Mableton 1 N, Ga (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.