Harman US

Thurmont, MD Weather & Growing Conditions

Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. South wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 54°F Mostly Clear 6 mph S 1%
Wednesday 74°F Mostly Sunny 5 to 10 mph S 1%
Wednesday Night 63°F Mostly Cloudy then Rain Showers 6 to 10 mph S 75%
Thursday 74°F Rain Showers Likely 6 to 10 mph S 68%
Thursday Night 62°F Chance Rain Showers 1 to 6 mph W 52%
Friday 70°F Chance Light Rain 2 mph N 51%
Friday Night 51°F Slight Chance Light Rain then Partly Cloudy 1 to 5 mph NW 22%
Saturday 63°F Mostly Sunny 5 to 15 mph W 11%
Saturday Night 43°F Partly Cloudy 8 to 14 mph W 11%
Sunday 60°F Mostly Sunny 8 to 12 mph NW 2%
Sunday Night 41°F Mostly Clear 8 mph W 4%
Monday 60°F Sunny 7 to 13 mph W 5%
Monday Night 41°F Mostly Clear 2 to 8 mph W 5%
Tuesday 63°F Sunny 5 to 12 mph W 2%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Thurmont, MD

Last spring frost
Apr 14
First fall frost
Oct 30
Growing season
197 days
Hardiness zone
7a

Explore more for Thurmont, MD: full frost dates · planting calendar · Maryland frost dates

Climate data from the nearest NOAA station, Catoctin Mtn Park, Md (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.