Harman US

Thurmont, MD Weather & Growing Conditions

Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southeast wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 54°F Mostly Clear 5 mph SE 1%
Wednesday 74°F Mostly Sunny 3 to 12 mph SE 2%
Wednesday Night 63°F Mostly Cloudy then Light Rain 7 to 10 mph S 81%
Thursday 74°F Light Rain 5 to 10 mph S 79%
Thursday Night 62°F Light Rain Likely 1 to 5 mph W 58%
Friday 70°F Light Rain Likely 2 mph N 56%
Friday Night 51°F Chance Light Rain 3 mph NW 46%
Saturday 63°F Mostly Sunny 3 to 12 mph NW 13%
Saturday Night 43°F Partly Cloudy 5 to 9 mph NW 13%
Sunday 60°F Mostly Sunny 3 to 7 mph W 7%
Sunday Night 41°F Partly Cloudy then Slight Chance Light Rain 7 mph W 21%
Monday 60°F Slight Chance Light Rain 7 to 15 mph NW 23%
Monday Night 41°F Slight Chance Light Rain 5 to 9 mph W 23%
Tuesday 63°F Sunny 6 to 13 mph W 10%

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.