St. James, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. James, a community in Washington County, Maryland.
Tonight
57°F
Isolated Rain Showers then Partly Cloudy
Isolated rain showers before 8pm. Partly cloudy, with a low around 57. North wind 6 to 9 mph. Chance of precipitation is 20%.
7-day forecast for St. James
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Isolated Rain Showers then Partly Cloudy | 6 to 9 mph N | 20% |
| Saturday | 77°F | Partly Sunny | 6 to 9 mph E | 5% |
| Saturday Night | 65°F | Mostly Cloudy then Scattered Rain Showers | 8 mph SE | 30% |
| Sunday | 81°F | Showers And Thunderstorms | 8 to 14 mph S | 78% |
| Sunday Night | 62°F | Showers And Thunderstorms | 3 to 9 mph NW | 78% |
| Monday | 71°F | Chance Rain Showers | 7 to 12 mph NE | 41% |
| Monday Night | 58°F | Rain Showers Likely | 6 to 9 mph NE | 60% |
| Tuesday | 63°F | Showers And Thunderstorms | 10 mph NE | 75% |
| Tuesday Night | 53°F | Showers And Thunderstorms | 10 mph NE | 75% |
| Wednesday | 59°F | Rain Showers Likely | 10 mph NE | 57% |
| Wednesday Night | 53°F | Showers And Thunderstorms Likely | 9 mph NE | 55% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 9 mph NE | 52% |
| Thursday Night | 53°F | Chance Rain Showers | 3 to 7 mph N | 34% |
| Friday | 67°F | Chance Rain Showers | 6 to 9 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for St. James (39.574, -77.748). Updated through the day.
Growing snapshot for St. James
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
199 days
Hardiness zone
7a
More local growing data for St. James: nearby ZIP 21781 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Antietam
Bakersville
Beaver Creek
Big Pool
Big Spring
Boonsboro
Breathedsville
Brownsville
Cavetown
Cearfoss
Charlton
Chewsville
Clear Spring
Dargan
Downsville
Eakles Mill
Edgemont
Ernstville
Fairplay
Fairview
Fort Ritchie
Fountainhead-Orchard Hills
Funkstown
Gapland
Greensburg
Hagerstown
Halfway
Hancock
Highfield-Cascade
Indian Springs
Climate data from the nearest NOAA station, Hagerstown 1 E, Md (5.8 mi from St. James). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.