Darnestown, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Darnestown, a community in Montgomery County, Maryland.
Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. Northeast wind around 8 mph.
7-day forecast for Darnestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 8 mph NE | 2% |
| Saturday | 78°F | Partly Sunny | 8 mph E | 5% |
| Saturday Night | 66°F | Mostly Cloudy then Isolated Rain Showers | 8 mph SE | 20% |
| Sunday | 82°F | Rain Showers Likely | 8 to 13 mph S | 55% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 3 to 9 mph W | 68% |
| Monday | 73°F | Chance Rain Showers | 8 to 12 mph NE | 40% |
| Monday Night | 60°F | Rain Showers Likely | 7 to 12 mph NE | 55% |
| Tuesday | 65°F | Rain Showers Likely | 13 mph NE | 59% |
| Tuesday Night | 55°F | Rain Showers Likely | 13 mph NE | 59% |
| Wednesday | 61°F | Chance Rain Showers | 13 mph NE | 53% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 50% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 12 mph NE | 48% |
| Thursday Night | 54°F | Chance Showers And Thunderstorms | 5 to 9 mph N | 35% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 23% |
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 Sep 19, 2026.