Rosaryville, MD Weather & Growing Conditions
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 75°F | Mostly Sunny | 5 to 9 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Slight Chance Light Rain | 8 mph S | 16% |
| Thursday | 76°F | Chance Light Rain | 10 mph S | 26% |
| Thursday Night | 63°F | Light Rain Likely | 7 mph S | 65% |
| Friday | 71°F | Rain | 6 mph N | 79% |
| Friday Night | 53°F | Light Rain | 2 to 7 mph NW | 75% |
| Saturday | 66°F | Mostly Sunny | 7 to 10 mph NW | 12% |
| Saturday Night | 44°F | Partly Cloudy | 8 mph NW | 12% |
| Sunday | 62°F | Mostly Sunny | 5 to 8 mph W | 5% |
| Sunday Night | 43°F | Partly Cloudy then Slight Chance Light Rain | 5 to 8 mph W | 18% |
| Monday | 62°F | Slight Chance Light Rain | 9 to 14 mph W | 20% |
| Monday Night | 41°F | Slight Chance Light Rain | 6 to 9 mph W | 20% |
| Tuesday | 65°F | Sunny | 8 to 12 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rosaryville, MD
Last spring frost
Apr 9
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7b
Explore more for Rosaryville, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Upper Marlboro 3 Nnw, Md (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.