Big Pool, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Pool, a community in Washington County, Maryland.
Tonight
63°F
Light Rain
Rain after 10pm. Mostly cloudy, with a low around 63. Southeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Big Pool
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Light Rain | 7 mph SE | 98% |
| Thursday | 77°F | Light Rain Likely | 1 to 7 mph S | 61% |
| Thursday Night | 52°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph NW | 21% |
| Friday | 69°F | Partly Sunny | 1 to 5 mph W | 7% |
| Friday Night | 44°F | Partly Cloudy | 1 to 6 mph NW | 4% |
| Saturday | 59°F | Mostly Sunny | 6 to 12 mph NW | 8% |
| Saturday Night | 40°F | Partly Cloudy | 10 mph NW | 3% |
| Sunday | 60°F | Mostly Sunny | 7 to 12 mph NW | 1% |
| Sunday Night | 37°F | Mostly Clear | 7 mph W | 0% |
| Monday | 62°F | Sunny | 6 to 12 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 67°F | Sunny | 2 to 9 mph W | 0% |
| Tuesday Night | 36°F | Mostly Clear | 5 mph W | 1% |
| Veterans Day | 63°F | Sunny | 2 to 6 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Big Pool (39.625, -78.016). Updated through the day.
Growing snapshot for Big Pool
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
187 days
Hardiness zone
7a
More local growing data for Big Pool: 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 Big Pool). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.