Port Wentworth, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Wentworth, a city in Chatham County, Georgia.
Tonight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. Northeast wind around 1 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Port Wentworth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Partly Cloudy | 1 mph NE | 14% |
| Sunday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph NE | 45% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 24% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 7 mph NE | 32% |
| Monday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 7 mph E | 32% |
| Tuesday | 88°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph NE | 64% |
| Tuesday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 7 mph NE | 64% |
| Wednesday | 86°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 52% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 9 mph NE | 52% |
| Thursday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph N | 16% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 to 9 mph NE | 16% |
| Friday | 83°F | Sunny | 9 mph N | 9% |
| Friday Night | 65°F | Partly Cloudy | 3 to 7 mph NE | 9% |
| Saturday | 82°F | Mostly Sunny | 8 mph NE | 12% |
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 Sep 20, 2026.