Clarksburg, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarksburg, a community in Montgomery County, Maryland.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind around 6 mph.
7-day forecast for Clarksburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 73°F | Mostly Sunny | 5 to 12 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Light Rain Likely | 6 to 9 mph S | 57% |
| Thursday | 74°F | Light Rain Likely | 7 to 10 mph S | 60% |
| Thursday Night | 60°F | Chance Light Rain | 2 to 6 mph SW | 50% |
| Friday | 69°F | Rain Likely | 5 mph NW | 58% |
| Friday Night | 50°F | Chance Light Rain | 2 to 6 mph NW | 53% |
| Saturday | 63°F | Mostly Sunny | 7 to 13 mph NW | 12% |
| Saturday Night | 42°F | Partly Cloudy | 8 mph NW | 12% |
| Sunday | 60°F | Mostly Sunny | 5 to 9 mph W | 7% |
| Sunday Night | 41°F | Partly Cloudy then Slight Chance Light Rain | 5 to 8 mph W | 20% |
| Monday | 60°F | Slight Chance Light Rain | 8 to 16 mph NW | 20% |
| Monday Night | 39°F | Slight Chance Light Rain | 5 to 8 mph W | 20% |
| Tuesday | 63°F | Sunny | 7 to 14 mph W | 11% |
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
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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 Nov 4, 2026.