Smithsburg, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithsburg, a town in Washington County, Maryland.
Today
77°F
Partly Sunny
Partly sunny, with a high near 77. East wind around 5 mph.
7-day forecast for Smithsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Partly Sunny | 5 mph E | 12% |
| Tonight | 63°F | Chance Rain Showers | 5 to 12 mph SE | 34% |
| Sunday | 81°F | Showers And Thunderstorms Likely | 6 to 12 mph S | 64% |
| Sunday Night | 58°F | Showers And Thunderstorms | 3 to 12 mph NW | 81% |
| Monday | 68°F | Chance Rain Showers | 7 to 12 mph NE | 40% |
| Monday Night | 53°F | Rain Showers Likely | 7 to 10 mph NE | 55% |
| Tuesday | 60°F | Rain Showers Likely | 12 mph E | 67% |
| Tuesday Night | 50°F | Rain Showers Likely | 14 mph NE | 64% |
| Wednesday | 58°F | Chance Rain Showers | 14 mph NE | 52% |
| Wednesday Night | 51°F | Chance Rain Showers | 14 mph NE | 43% |
| Thursday | 60°F | Chance Rain Showers | 9 to 14 mph NE | 43% |
| Thursday Night | 50°F | Chance Rain Showers | 6 to 9 mph NE | 36% |
| Friday | 65°F | Slight Chance Rain Showers | 10 mph N | 21% |
| Friday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph N | 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 Sep 19, 2026.