Darnestown, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Darnestown, a community in Montgomery County, Maryland.
This Afternoon
71°F
Sunny
Sunny, with a high near 71. South wind around 7 mph.
7-day forecast for Darnestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 7 mph S | 2% |
| Tonight | 52°F | Mostly Clear | 6 mph SE | 2% |
| Wednesday | 74°F | Mostly Sunny | 3 to 12 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Chance Light Rain | 8 mph S | 53% |
| Thursday | 75°F | Chance Light Rain | 10 mph S | 51% |
| Thursday Night | 61°F | Chance Light Rain | 2 to 7 mph SW | 49% |
| Friday | 70°F | Rain Likely | 5 mph NW | 60% |
| Friday Night | 49°F | Light Rain Likely then Partly Cloudy | 2 to 6 mph NW | 57% |
| Saturday | 64°F | Mostly Sunny | 7 to 12 mph NW | 10% |
| Saturday Night | 40°F | Partly Cloudy | 5 to 9 mph NW | 10% |
| Sunday | 61°F | Mostly Sunny | 5 to 8 mph W | 5% |
| Sunday Night | 39°F | Partly Cloudy | 3 to 7 mph NW | 14% |
| Monday | 61°F | Mostly Sunny | 7 to 13 mph NW | 14% |
| Monday Night | 38°F | Mostly Clear | 2 to 7 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Darnestown (39.089, -77.312). Updated through the day.
Growing snapshot for Darnestown
Last spring frost
Apr 1
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
7b
More local growing data for Darnestown: nearby ZIP 20874 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Rockville 1 Ne, Md (8.5 mi from Darnestown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.