Harman US

Crownsville, MD Weather & Growing Conditions

Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. Northeast wind around 9 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 63°F Mostly Clear 9 mph NE 0%
Saturday 80°F Mostly Sunny 6 to 9 mph NE 5%
Saturday Night 66°F Mostly Cloudy then Slight Chance Rain Showers 6 to 9 mph SE 15%
Sunday 84°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 7 to 12 mph S 27%
Sunday Night 63°F Showers And Thunderstorms Likely 3 to 10 mph W 71%
Monday 73°F Chance Rain Showers 12 mph NE 31%
Monday Night 59°F Chance Rain Showers 12 mph NE 38%
Tuesday 69°F Chance Rain Showers 13 to 16 mph NE 52%
Tuesday Night 56°F Chance Rain Showers 16 mph NE 52%
Wednesday 66°F Chance Rain Showers 17 mph NE 41%
Wednesday Night 56°F Chance Rain Showers 14 to 17 mph NE 43%
Thursday 66°F Chance Rain Showers 17 mph NE 43%
Thursday Night 55°F Chance Rain Showers 9 to 15 mph N 36%
Friday 70°F Chance Rain Showers 14 mph N 25%

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

Growing snapshot for Crownsville, MD

Last spring frost
Mar 27
First fall frost
Nov 13
Growing season
234 days
Hardiness zone
7b

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

Climate data from the nearest NOAA station, Annapolis Police Brks, Md (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.