South Riding, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Riding, a community in Loudoun County, Virginia.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. South wind 8 to 12 mph, with gusts as high as 20 mph.
7-day forecast for South Riding
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 8 to 12 mph S | 1% |
| Tonight | 61°F | Mostly Cloudy then Chance Rain Showers | 6 to 10 mph S | 46% |
| Thursday | 74°F | Chance Rain Showers | 12 mph S | 41% |
| Thursday Night | 60°F | Chance Rain Showers | 2 to 8 mph SW | 51% |
| Friday | 70°F | Chance Light Rain | 5 mph N | 50% |
| Friday Night | 49°F | Chance Light Rain then Partly Cloudy | 2 to 8 mph NW | 27% |
| Saturday | 63°F | Mostly Sunny | 8 to 14 mph NW | 6% |
| Saturday Night | 41°F | Mostly Clear | 9 to 13 mph NW | 5% |
| Sunday | 61°F | Mostly Sunny | 8 to 13 mph NW | 1% |
| Sunday Night | 40°F | Mostly Clear | 8 mph NW | 5% |
| Monday | 62°F | Sunny | 8 to 15 mph NW | 5% |
| Monday Night | 37°F | Mostly Clear | 2 to 8 mph W | 4% |
| Tuesday | 65°F | Sunny | 3 to 8 mph SW | 2% |
| Tuesday Night | 40°F | Mostly Clear | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for South Riding (38.912, -77.513). Updated through the day.
Growing snapshot for South Riding
Last spring frost
Apr 15
First fall frost
Oct 24
Growing season
194 days
Hardiness zone
7a
More local growing data for South Riding: nearby ZIP 20152 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Aldie
Arcola
Ashburn
Belmont
Brambleton
Broadlands
Cascades
Countryside
Dulles Town Center
Goose Creek Village
Hamilton
Hillsboro
Kincora
Lansdowne
Leesburg
Loudoun Valley Estates
Lovettsville
Lowes Island
Middleburg
Moorefield
Oak Grove
One Loudoun
Purcellville
Round Hill
Sterling
Stone Ridge
Sugarland Run
University Center
Upperville
Waterford
Climate data from the nearest NOAA station, Washington Dc Dulles Ap, Va (4.1 mi from South Riding). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.