Big Spring, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Spring, a community in Washington County, Maryland.
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. East wind around 3 mph.
7-day forecast for Big Spring
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 3 mph E | 0% |
| Tonight | 67°F | Mostly Cloudy then Chance Rain Showers | 3 mph E | 27% |
| Wednesday | 84°F | Showers And Thunderstorms Likely | 1 to 5 mph E | 64% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 1 to 5 mph SE | 37% |
| Thursday | 90°F | Mostly Sunny then Showers And Thunderstorms Likely | 1 to 6 mph S | 57% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 3 mph SW | 57% |
| Friday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 56% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph SW | 56% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 45% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph W | 45% |
| Sunday | 90°F | Mostly Sunny | 1 to 5 mph W | 14% |
| Sunday Night | 70°F | Partly Cloudy | 0 to 3 mph SW | 14% |
| Monday | 91°F | Mostly Sunny | 1 to 8 mph W | 12% |
| Monday Night | 70°F | Partly Cloudy | 2 to 7 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov) for Big Spring (39.626, -77.940). Updated through the day.
Growing snapshot for Big Spring
Last spring frost
Apr 7
First fall frost
Nov 4
Growing season
209 days
Hardiness zone
7a
More local growing data for Big Spring: nearby ZIP 21722 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Hagerstown Washington Co Ap, Md (10.2 mi from Big Spring). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.