St. George Island, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. George Island, a community in St. Mary's County, Maryland.
This Afternoon
84°F
Mostly Sunny
Mostly sunny, with a high near 84. North wind around 10 mph.
7-day forecast for St. George Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Mostly Sunny | 10 mph N | 10% |
| Tonight | 70°F | Mostly Cloudy | 10 to 14 mph NE | 10% |
| Saturday | 80°F | Mostly Sunny | 9 to 14 mph NE | 10% |
| Saturday Night | 72°F | Mostly Cloudy | 10 to 14 mph E | 10% |
| Sunday | 83°F | Sunny | 13 mph S | 10% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 9 to 13 mph SW | 41% |
| Monday | 79°F | Chance Showers And Thunderstorms | 13 mph N | 50% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 15 mph NE | 51% |
| Tuesday | 73°F | Showers And Thunderstorms Likely | 15 to 21 mph NE | 56% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely | 21 mph NE | 56% |
| Wednesday | 69°F | Chance Rain Showers | 21 mph NE | 50% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 22 mph NE | 50% |
| Thursday | 69°F | Chance Showers And Thunderstorms | 20 mph NE | 41% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 14 to 20 mph N | 37% |
Forecast source: National Weather Service (api.weather.gov) for St. George Island (38.116, -76.477). Updated through the day.
Growing snapshot for St. George Island
Last spring frost
Mar 30
First fall frost
Nov 14
Growing season
229 days
Hardiness zone
8a
More local growing data for St. George Island: nearby ZIP 20630 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, St Inigoes Webster Nolf, Md (2.3 mi from St. George Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.