Clarksburg, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarksburg, a community in Montgomery County, Maryland.
This Afternoon
77°F
Partly Sunny
Partly sunny, with a high near 77. East wind around 6 mph.
7-day forecast for Clarksburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Partly Sunny | 6 mph E | 7% |
| Tonight | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 8 mph SE | 20% |
| Sunday | 82°F | Chance Rain Showers | 8 to 12 mph S | 46% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 3 to 13 mph W | 68% |
| Monday | 69°F | Chance Rain Showers | 8 to 13 mph N | 36% |
| Monday Night | 55°F | Chance Rain Showers | 6 to 10 mph NE | 45% |
| Tuesday | 62°F | Rain Showers Likely | 13 mph NE | 61% |
| Tuesday Night | 52°F | Rain Showers Likely | 14 mph NE | 61% |
| Wednesday | 58°F | Chance Rain Showers | 15 mph NE | 49% |
| Wednesday Night | 52°F | Chance Rain Showers | 10 to 14 mph NE | 46% |
| Thursday | 61°F | Chance Rain Showers | 14 mph NE | 46% |
| Thursday Night | 51°F | Chance Rain Showers | 6 to 10 mph NE | 37% |
| Friday | 66°F | Slight Chance Rain Showers | 10 mph N | 18% |
| Friday Night | 50°F | Slight Chance Rain Showers | 6 to 9 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Clarksburg (39.223, -77.266). Updated through the day.
Growing snapshot for Clarksburg
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
196 days
Hardiness zone
7b
More local growing data for Clarksburg: nearby ZIP 20876 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Ashton-Sandy Spring
Aspen Hill
Barnesville
Bethesda
Brookeville
Brookmont
Burnt Mills
Burtonsville
Cabin John
Calverton
Chevy Chase
Chevy Chase
Chevy Chase Section Five
Chevy Chase Section Three
Chevy Chase View
Chevy Chase Village
Cloverly
Colesville
Damascus
Darnestown
Derwood
Fairland
Flower Hill
Forest Glen
Four Corners
Friendship Heights Village
Gaithersburg
Garrett Park
Germantown
Glen Echo
Climate data from the nearest NOAA station, Damascus 3 Ssw, Md (4 mi from Clarksburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.