Kilmarnock, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kilmarnock, a town in Northumberland County, Virginia.
Overnight
70°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a low around 70. Northeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Kilmarnock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Slight Chance Rain Showers | 5 mph NE | 15% |
| Saturday | 80°F | Partly Sunny | 6 to 9 mph E | 12% |
| Saturday Night | 69°F | Partly Cloudy | 9 mph E | 7% |
| Sunday | 84°F | Mostly Sunny | 9 mph SE | 3% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 40% |
| Monday | 79°F | Chance Rain Showers | 3 to 13 mph N | 40% |
| Monday Night | 67°F | Chance Rain Showers | 13 mph NE | 45% |
| Tuesday | 77°F | Chance Rain Showers | 14 to 20 mph NE | 52% |
| Tuesday Night | 64°F | Chance Rain Showers | 14 to 18 mph NE | 52% |
| Wednesday | 73°F | Chance Rain Showers | 18 mph NE | 52% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 14 to 18 mph NE | 52% |
| Thursday | 72°F | Chance Showers And Thunderstorms | 18 mph NE | 47% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 10 to 17 mph N | 44% |
| Friday | 72°F | Slight Chance Rain Showers | 14 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Kilmarnock (37.711, -76.383). Updated through the day.
Growing snapshot for Kilmarnock
Last spring frost
Apr 1
First fall frost
Nov 10
Growing season
223 days
Hardiness zone
8a
More local growing data for Kilmarnock: nearby ZIP 22482 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, N, Va (21.5 mi from Kilmarnock). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.