Smithsburg, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithsburg, a town in Washington County, Maryland.
This Afternoon
86°F
Mostly Sunny
Mostly sunny, with a high near 86. East wind 2 to 6 mph.
7-day forecast for Smithsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Mostly Sunny | 2 to 6 mph E | 0% |
| Tonight | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph SE | 21% |
| Wednesday | 84°F | Rain Showers Likely | 2 to 6 mph SE | 66% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 6 mph S | 56% |
| Thursday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 7 mph S | 57% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph SW | 57% |
| Friday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph SW | 52% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 52% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph W | 43% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 43% |
| Sunday | 88°F | Mostly Sunny | 1 to 6 mph W | 13% |
| Sunday Night | 70°F | Partly Cloudy | 1 to 5 mph SW | 13% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 9 mph W | 15% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Smithsburg (39.655, -77.580). Updated through the day.
Growing snapshot for Smithsburg
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a
More local growing data for Smithsburg: nearby ZIP 21783 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Smithsburg 2Nw, Md (1.8 mi from Smithsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.