Clarksburg, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarksburg, a community in Montgomery County, Maryland.
Today
84°F
Partly Sunny
Partly sunny, with a high near 84. East wind around 6 mph.
7-day forecast for Clarksburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny | 6 mph E | 1% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 6 mph E | 46% |
| Wednesday | 84°F | Rain Showers Likely | 2 to 6 mph SE | 74% |
| Wednesday Night | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph S | 55% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph S | 27% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 32% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph SW | 44% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 48% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph W | 46% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 46% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph W | 18% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 18% |
| Monday | 90°F | Mostly Sunny | 2 to 7 mph W | 13% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 16% |
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 Aug 4, 2026.