Harman US

Green Valley, MD Weather & Growing Conditions

Overnight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 52°F Mostly Clear 6 mph S 1%
Wednesday 73°F Mostly Sunny 6 to 10 mph S 1%
Wednesday Night 62°F Mostly Cloudy then Rain Showers Likely 6 to 9 mph S 59%
Thursday 74°F Rain Showers Likely 6 to 10 mph S 58%
Thursday Night 61°F Chance Rain Showers 1 to 6 mph W 52%
Friday 69°F Chance Light Rain 3 mph N 52%
Friday Night 48°F Chance Light Rain then Partly Cloudy 3 mph NW 27%
Saturday 63°F Mostly Sunny 5 to 13 mph NW 8%
Saturday Night 39°F Partly Cloudy 6 to 9 mph W 8%
Sunday 60°F Mostly Sunny 7 to 12 mph NW 2%
Sunday Night 38°F Mostly Clear 6 mph W 5%
Monday 60°F Sunny 6 to 15 mph W 5%
Monday Night 37°F Mostly Clear 2 to 7 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 Green Valley, MD

Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
196 days
Hardiness zone
7a

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

Climate data from the nearest NOAA station, Damascus 3 Ssw, Md (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.