Dumbarton, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dumbarton, a community in Henrico County, Virginia.
Today
81°F
Partly Sunny
Partly sunny, with a high near 81. Northeast wind around 7 mph.
7-day forecast for Dumbarton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Partly Sunny | 7 mph NE | 11% |
| Tonight | 67°F | Mostly Cloudy | 6 mph SE | 5% |
| Sunday | 86°F | Partly Sunny | 2 to 8 mph S | 11% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 29% |
| Monday | 79°F | Chance Rain Showers | 6 to 13 mph N | 34% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 6 to 12 mph NE | 49% |
| Tuesday | 74°F | Showers And Thunderstorms Likely | 9 to 15 mph NE | 57% |
| Tuesday Night | 61°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 57% |
| Wednesday | 68°F | Chance Rain Showers | 16 mph NE | 48% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 10 to 15 mph N | 48% |
| Thursday | 69°F | Chance Showers And Thunderstorms | 13 to 17 mph N | 45% |
| Thursday Night | 55°F | Chance Showers And Thunderstorms | 7 to 16 mph N | 36% |
| Friday | 70°F | Slight Chance Rain Showers | 14 mph N | 17% |
| Friday Night | 54°F | Partly Cloudy | 5 to 10 mph N | 13% |
Forecast source: National Weather Service (api.weather.gov) for Dumbarton (37.612, -77.508). Updated through the day.
Growing snapshot for Dumbarton
Last spring frost
Apr 10
First fall frost
Oct 31
Growing season
202 days
Hardiness zone
7b
More local growing data for Dumbarton: nearby ZIP 23228 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Chamberlayne
East Highland Park
Glen Allen
Highland Springs
Innsbrook
Lakeside
Laurel
Montrose
Sandston
Short Pump
Tuckahoe
Climate data from the nearest NOAA station, Ashland Hanover Co Muni Ap, Va (6.5 mi from Dumbarton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.