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
86°F
Partly Sunny
Partly sunny, with a high near 86. East wind around 6 mph.
7-day forecast for South Riding
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Partly Sunny | 6 mph E | 5% |
| Tonight | 69°F | Showers And Thunderstorms Likely | 1 to 7 mph E | 71% |
| Wednesday | 85°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 67% |
| Wednesday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 mph S | 56% |
| Thursday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 12 mph S | 19% |
| Thursday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 19% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 47% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 47% |
| Saturday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 1 to 6 mph SW | 57% |
| Saturday Night | 70°F | Showers And Thunderstorms Likely | 1 to 5 mph SW | 57% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph W | 20% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 20% |
| Monday | 91°F | Mostly Sunny | 1 to 7 mph W | 11% |
| Monday Night | 72°F | Partly Cloudy | 2 to 6 mph W | 14% |
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 Aug 4, 2026.