Grayson, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grayson, a city in Gwinnett County, Georgia.
Today
85°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 85, with temperatures falling to around 81 in the afternoon. East 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 Grayson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 61% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 52% |
| Wednesday | 85°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 68% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 56% |
| Thursday | 88°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 69% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 69% |
| Friday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 41% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 41% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Sunday | 89°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 48% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 48% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 40% |
Forecast source: National Weather Service (api.weather.gov) for Grayson (33.891, -83.958). Updated through the day.
Growing snapshot for Grayson
Last spring frost
Apr 3
First fall frost
Nov 7
Growing season
219 days
Hardiness zone
8a
More local growing data for Grayson: nearby ZIP 30017 weather · frost dates · planting calendar · Georgia frost dates
Nearby towns & communities
Berkeley Lake
Buford
Dacula
Lawrenceville
Lilburn
Mountain Park
Norcross
Peachtree Corners
Rest Haven
Snellville
Sugar Hill
Suwanee
Climate data from the nearest NOAA station, Winder 4S, Ga (13.9 mi from Grayson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.