Port Wentworth, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Wentworth, a city in Chatham County, Georgia.
Today
82°F
Partly Sunny
Partly sunny, with a high near 82. Southeast wind 5 to 12 mph.
7-day forecast for Port Wentworth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny | 5 to 12 mph SE | 2% |
| Tonight | 66°F | Mostly Cloudy | 1 to 6 mph SE | 10% |
| Thursday | 84°F | Mostly Sunny | 1 to 6 mph S | 7% |
| Thursday Night | 66°F | Partly Cloudy | 5 mph S | 11% |
| Friday | 82°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 32% |
| Friday Night | 56°F | Chance Rain Showers then Partly Cloudy | 3 mph W | 28% |
| Saturday | 78°F | Sunny | 6 mph NW | 1% |
| Saturday Night | 49°F | Partly Cloudy | 3 mph N | 1% |
| Sunday | 73°F | Mostly Sunny | 5 mph NE | 1% |
| Sunday Night | 46°F | Partly Cloudy | 3 mph NE | 6% |
| Monday | 72°F | Mostly Sunny | 5 mph N | 6% |
| Monday Night | 45°F | Slight Chance Rain Showers | 3 mph N | 15% |
| Tuesday | 72°F | Sunny | 5 mph N | 8% |
| Tuesday Night | 46°F | Mostly Clear | 3 mph NW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Port Wentworth (32.192, -81.206). Updated through the day.
Growing snapshot for Port Wentworth
Last spring frost
Mar 2
First fall frost
Nov 30
Growing season
270 days
Hardiness zone
9a
More local growing data for Port Wentworth: nearby ZIP 31407 weather · frost dates · planting calendar · Georgia frost dates
Nearby towns & communities
Bloomingdale
Dutch Island
Garden City
Georgetown
Henderson
Isle of Hope
Montgomery
Pooler
Savannah
Skidaway Island
Talahi Island
Thunderbolt
Tybee Island
Vernonburg
Whitemarsh Island
Wilmington Island
Climate data from the nearest NOAA station, Savannah Intl Ap, Ga (3.7 mi from Port Wentworth). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.