Harman US

Mechanicsville, MD Weather & Growing Conditions

Overnight
65°F
Partly Cloudy
Partly cloudy, with a low around 65. Northeast wind around 8 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 65°F Partly Cloudy 8 mph NE 4%
Saturday 80°F Mostly Sunny 6 to 9 mph NE 7%
Saturday Night 66°F Mostly Cloudy 3 to 7 mph SE 11%
Sunday 84°F Mostly Cloudy 3 to 10 mph S 14%
Sunday Night 65°F Showers And Thunderstorms Likely 3 to 8 mph W 64%
Monday 74°F Rain Showers Likely 8 to 12 mph N 59%
Monday Night 60°F Chance Rain Showers 10 mph NE 36%
Tuesday 70°F Chance Rain Showers 12 to 18 mph NE 54%
Tuesday Night 57°F Chance Rain Showers 14 to 18 mph NE 54%
Wednesday 66°F Chance Rain Showers 15 to 20 mph NE 46%
Wednesday Night 57°F Chance Rain Showers 13 to 20 mph NE 46%
Thursday 66°F Chance Showers And Thunderstorms 15 to 20 mph NE 44%
Thursday Night 55°F Chance Showers And Thunderstorms 9 to 18 mph N 40%
Friday 69°F Slight Chance Rain Showers 12 to 16 mph N 20%

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

Growing snapshot for Mechanicsville, MD

Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
195 days
Hardiness zone
7b

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

Climate data from the nearest NOAA station, Mechanicsville 5 Ne, Md (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.