Harman US

Rockville, MD Weather & Growing Conditions

Today
75°F
Mostly Sunny
Mostly sunny, with a high near 75. South wind 3 to 9 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 75°F Mostly Sunny 3 to 9 mph S 1%
Tonight 61°F Mostly Cloudy then Chance Rain Showers 7 mph S 38%
Thursday 74°F Chance Rain Showers 9 mph S 46%
Thursday Night 60°F Rain Showers Likely 2 to 6 mph SW 55%
Friday 70°F Chance Light Rain 5 mph N 54%
Friday Night 48°F Chance Light Rain then Partly Cloudy 1 to 6 mph NW 33%
Saturday 63°F Mostly Sunny 6 to 12 mph NW 5%
Saturday Night 41°F Partly Cloudy 9 mph NW 5%
Sunday 60°F Mostly Sunny 6 to 10 mph NW 1%
Sunday Night 40°F Mostly Clear 7 mph W 5%
Monday 61°F Sunny 7 to 14 mph W 5%
Monday Night 38°F Mostly Clear 2 to 8 mph W 5%
Tuesday 64°F Sunny 3 to 9 mph W 3%
Tuesday Night 40°F Mostly Clear 6 mph W 0%

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

Growing snapshot for Rockville, MD

Last spring frost
Apr 1
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
7b

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

Climate data from the nearest NOAA station, Rockville 1 Ne, Md (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.