Marietta, GA Weather & Growing Conditions
Today
87°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10am and 2pm, then showers and thunderstorms likely. Partly sunny. High near 87, with temperatures falling to around 81 in the afternoon. Southeast wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 59% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 53% |
| Wednesday | 87°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 74% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph S | 57% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 65% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 65% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 37% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 37% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 47% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 47% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 47% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 42% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 42% |
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 (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.