Crownsville, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crownsville, a community in Anne Arundel County, Maryland.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 7 mph.
7-day forecast for Crownsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 7 mph S | 2% |
| Tonight | 52°F | Mostly Clear then Patchy Fog | 1 to 6 mph S | 2% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 9 mph S | 3% |
| Wednesday Night | 60°F | Mostly Cloudy | 8 mph S | 7% |
| Thursday | 75°F | Chance Light Rain | 6 to 9 mph S | 40% |
| Thursday Night | 61°F | Rain Likely | 3 to 7 mph S | 73% |
| Friday | 72°F | Rain | 3 to 7 mph SW | 78% |
| Friday Night | 52°F | Light Rain Likely | 5 mph NW | 72% |
| Saturday | 68°F | Slight Chance Light Rain then Mostly Sunny | 8 mph NW | 15% |
| Saturday Night | 46°F | Partly Cloudy | 6 mph NW | 10% |
| Sunday | 65°F | Mostly Sunny | 7 mph NW | 8% |
| Sunday Night | 45°F | Chance Light Rain | 3 to 7 mph NW | 26% |
| Monday | 61°F | Chance Light Rain | 7 to 13 mph NW | 26% |
| Monday Night | 43°F | Slight Chance Light Rain | 9 mph NW | 23% |
Forecast source: National Weather Service (api.weather.gov) for Crownsville (39.022, -76.590). Updated through the day.
Growing snapshot for Crownsville
Last spring frost
Mar 27
First fall frost
Nov 13
Growing season
234 days
Hardiness zone
7b
More local growing data for Crownsville: nearby ZIP 21032 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Annapolis Police Brks, Md (5.7 mi from Crownsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.