Ernstville, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ernstville, a community in Washington County, Maryland.
Overnight
49°F
Mostly Clear
Mostly clear, with a low around 49. Southeast wind around 3 mph.
7-day forecast for Ernstville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Clear | 3 mph SE | 1% |
| Wednesday | 75°F | Mostly Sunny | 3 to 10 mph SE | 1% |
| Wednesday Night | 61°F | Mostly Cloudy then Rain Showers | 5 to 8 mph SE | 80% |
| Thursday | 77°F | Rain Showers Likely | 2 to 7 mph S | 62% |
| Thursday Night | 56°F | Chance Rain Showers then Areas Of Fog | 2 mph W | 38% |
| Friday | 70°F | Slight Chance Light Rain | 2 mph NW | 26% |
| Friday Night | 46°F | Partly Cloudy | 3 mph NW | 8% |
| Saturday | 63°F | Mostly Sunny | 3 to 12 mph W | 10% |
| Saturday Night | 37°F | Partly Cloudy | 8 mph W | 7% |
| Sunday | 61°F | Mostly Sunny | 6 to 10 mph NW | 3% |
| Sunday Night | 36°F | Mostly Clear | 6 mph W | 5% |
| Monday | 60°F | Sunny | 6 to 13 mph W | 4% |
| Monday Night | 36°F | Mostly Clear | 2 to 6 mph W | 3% |
| Tuesday | 64°F | Sunny | 3 to 9 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Ernstville (39.630, -78.024). Updated through the day.
Growing snapshot for Ernstville
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
187 days
Hardiness zone
7a
More local growing data for Ernstville: nearby ZIP 21711 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Martinsburg 2, Wv (14.3 mi from Ernstville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.