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
49°F
Mostly Clear
Mostly clear, with a low around 49. Southeast wind around 3 mph.
7-day forecast for Big Pool
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Clear | 3 mph SE | 1% |
| Wednesday | 75°F | Partly Sunny | 2 to 10 mph SE | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Light Rain | 5 to 8 mph SE | 91% |
| Thursday | 77°F | Light Rain Likely | 2 to 6 mph S | 71% |
| Thursday Night | 56°F | Chance Light Rain | 1 mph W | 40% |
| Friday | 70°F | Chance Light Rain | 2 mph NW | 43% |
| Friday Night | 46°F | Chance Light Rain then Partly Cloudy | 3 mph NW | 39% |
| Saturday | 63°F | Mostly Sunny | 3 to 9 mph NW | 13% |
| Saturday Night | 37°F | Partly Cloudy | 6 mph NW | 12% |
| Sunday | 61°F | Mostly Sunny | 2 to 7 mph W | 7% |
| Sunday Night | 36°F | Partly Cloudy then Slight Chance Light Rain | 6 mph W | 20% |
| Monday | 60°F | Slight Chance Light Rain | 6 to 13 mph W | 22% |
| Monday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 5 mph W | 22% |
| Tuesday | 64°F | Sunny | 5 to 10 mph W | 7% |
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 4, 2026.