Prince Frederick, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prince Frederick, a community in Calvert County, Maryland.
Tonight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 5 mph.
7-day forecast for Prince Frederick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Sunny | 3 to 8 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Patchy Fog | 7 mph S | 4% |
| Thursday | 76°F | Patchy Fog | 6 to 9 mph S | 23% |
| Thursday Night | 63°F | Light Rain | 6 mph S | 80% |
| Friday | 70°F | Rain | 6 mph S | 88% |
| Friday Night | 51°F | Rain | 2 to 6 mph NW | 83% |
| Saturday | 66°F | Mostly Sunny | 6 to 10 mph NW | 11% |
| Saturday Night | 42°F | Partly Cloudy | 7 mph NW | 11% |
| Sunday | 61°F | Mostly Sunny | 5 to 8 mph NW | 5% |
| Sunday Night | 41°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 17% |
| Monday | 62°F | Slight Chance Light Rain | 8 to 14 mph W | 20% |
| Monday Night | 40°F | Slight Chance Light Rain | 7 mph W | 20% |
| Tuesday | 64°F | Sunny | 8 to 12 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov) for Prince Frederick (38.544, -76.588). Updated through the day.
Growing snapshot for Prince Frederick
Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
195 days
Hardiness zone
7b
More local growing data for Prince Frederick: nearby ZIP 20678 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Broomes Island
Calvert Beach
Chesapeake Ranch Estates
Drum Point
Dunkirk
Huntingtown
Long Beach
Lusby
Owings
Solomons
St. Leonard
Climate data from the nearest NOAA station, Mechanicsville 5 Ne, Md (7.4 mi from Prince Frederick). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.