Haymarket, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Haymarket, a town in Prince William County, Virginia.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for Haymarket
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Tonight | 61°F | Mostly Cloudy then Chance Rain Showers | 5 to 9 mph S | 46% |
| Thursday | 75°F | Chance Rain Showers | 8 to 12 mph S | 39% |
| Thursday Night | 60°F | Chance Rain Showers | 2 to 8 mph W | 51% |
| Friday | 70°F | Chance Light Rain | 5 mph N | 48% |
| Friday Night | 50°F | Chance Light Rain then Partly Cloudy | 2 to 8 mph NW | 26% |
| Saturday | 63°F | Mostly Sunny | 8 to 13 mph NW | 6% |
| Saturday Night | 42°F | Mostly Clear | 8 to 12 mph NW | 5% |
| Sunday | 61°F | Sunny | 7 to 10 mph NW | 1% |
| Sunday Night | 41°F | Mostly Clear | 6 mph NW | 5% |
| Monday | 62°F | Sunny | 6 to 13 mph NW | 5% |
| Monday Night | 39°F | Mostly Clear | 2 to 7 mph W | 4% |
| Tuesday | 66°F | Sunny | 2 to 7 mph SW | 1% |
| Tuesday Night | 41°F | Mostly Clear | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Haymarket (38.812, -77.636). Updated through the day.
Growing snapshot for Haymarket
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
197 days
Hardiness zone
7a
More local growing data for Haymarket: nearby ZIP 20155 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Manassas, Va (8.6 mi from Haymarket). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.