Whitemarsh Island, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitemarsh Island, a community in Chatham County, Georgia.
This Afternoon
89°F
Sunny
Sunny, with a high near 89. Southeast wind around 7 mph.
7-day forecast for Whitemarsh Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Sunny | 7 mph SE | 2% |
| Tonight | 74°F | Partly Cloudy | 1 to 5 mph S | 5% |
| Saturday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 6 mph NW | 15% |
| Saturday Night | 75°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 24% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 1 to 7 mph NE | 44% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 6 mph E | 44% |
| Monday | 86°F | Chance Showers And Thunderstorms | 1 to 6 mph NE | 38% |
| Monday Night | 74°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 48% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 1 to 7 mph NE | 67% |
| Tuesday Night | 73°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph NE | 67% |
| Wednesday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 51% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms | 8 mph NE | 51% |
| Thursday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 mph NE | 23% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 9 mph NE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Whitemarsh Island (32.030, -81.013). Updated through the day.
Growing snapshot for Whitemarsh Island
Last spring frost
Mar 2
First fall frost
Nov 30
Growing season
270 days
Hardiness zone
9a
More local growing data for Whitemarsh Island: nearby ZIP 31410 weather · frost dates · planting calendar · Georgia frost dates
Nearby towns & communities
Bloomingdale
Dutch Island
Garden City
Georgetown
Henderson
Isle of Hope
Montgomery
Pooler
Port Wentworth
Savannah
Skidaway Island
Talahi Island
Thunderbolt
Tybee Island
Vernonburg
Wilmington Island
Climate data from the nearest NOAA station, Savannah Intl Ap, Ga (15.2 mi from Whitemarsh Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.