Difficult Run, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Difficult Run, a community in Fairfax County, Virginia.
This Afternoon
79°F
Partly Sunny
Partly sunny, with a high near 79. Southeast wind around 7 mph.
7-day forecast for Difficult Run
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Partly Sunny | 7 mph SE | 3% |
| Tonight | 68°F | Mostly Cloudy | 8 mph SE | 12% |
| Sunday | 85°F | Chance Rain Showers | 8 to 12 mph S | 32% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 61% |
| Monday | 73°F | Chance Rain Showers | 10 mph NE | 45% |
| Monday Night | 60°F | Chance Rain Showers | 9 mph NE | 48% |
| Tuesday | 67°F | Showers And Thunderstorms Likely | 8 to 13 mph NE | 59% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 12 mph NE | 59% |
| Wednesday | 63°F | Chance Rain Showers | 13 mph NE | 50% |
| Wednesday Night | 55°F | Chance Rain Showers | 12 mph NE | 36% |
| Thursday | 64°F | Chance Rain Showers | 13 mph NE | 27% |
| Thursday Night | 53°F | Chance Rain Showers | 7 to 12 mph N | 25% |
| Friday | 67°F | Slight Chance Rain Showers | 13 mph N | 24% |
| Friday Night | 53°F | Slight Chance Rain Showers | 7 to 13 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Difficult Run (38.907, -77.346). Updated through the day.
Growing snapshot for Difficult Run
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
7b
More local growing data for Difficult Run: nearby ZIP 22124 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Vienna, Va (2.2 mi from Difficult Run). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.