Rosaryville, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosaryville, a community in Prince George's County, Maryland.
Today
84°F
Partly Sunny
Partly sunny, with a high near 84. Northeast wind around 8 mph.
7-day forecast for Rosaryville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny | 8 mph NE | 6% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph E | 59% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 3 to 8 mph SE | 67% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph S | 45% |
| Thursday | 90°F | Mostly Sunny | 7 to 12 mph SW | 12% |
| Thursday Night | 74°F | Partly Cloudy | 7 to 10 mph SW | 12% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 9 mph SW | 32% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 44% |
| Saturday | 90°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 51% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 51% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph W | 21% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 21% |
| Monday | 92°F | Mostly Sunny | 3 to 7 mph W | 10% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 6 mph SW | 17% |
Forecast source: National Weather Service (api.weather.gov) for Rosaryville (38.768, -76.828). Updated through the day.
Growing snapshot for Rosaryville
Last spring frost
Apr 9
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7b
More local growing data for Rosaryville: nearby ZIP 20623 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Upper Marlboro 3 Nnw, Md (8.6 mi from Rosaryville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.