Grayson, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grayson, a city in Gwinnett County, Georgia.
This Afternoon
96°F
Sunny
Sunny, with a high near 96. Heat index values as high as 101. North wind around 0 mph.
7-day forecast for Grayson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Sunny | 0 mph | 13% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 21% |
| Saturday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 31% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 5 mph E | 49% |
| Sunday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 31% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 31% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 46% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 50% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 61% |
| Tuesday Night | 67°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 61% |
| Wednesday | 81°F | Chance Showers And Thunderstorms | 10 mph NE | 34% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 34% |
| Thursday | 80°F | Mostly Sunny | 10 to 15 mph NE | 7% |
| Thursday Night | 62°F | Partly Cloudy | 5 to 10 mph NE | 7% |
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 Sep 18, 2026.