New Carrollton, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Carrollton, a city in Prince George's County, Maryland.
Tonight
68°F
Mostly Cloudy
Mostly cloudy, with a low around 68. Southeast wind around 8 mph.
7-day forecast for New Carrollton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Mostly Cloudy | 8 mph SE | 10% |
| Sunday | 85°F | Chance Rain Showers | 7 to 10 mph S | 29% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 3 to 8 mph W | 69% |
| Monday | 74°F | Chance Rain Showers | 8 to 12 mph NE | 52% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 10 mph NE | 44% |
| Tuesday | 69°F | Chance Rain Showers | 9 to 15 mph NE | 53% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 13 mph NE | 53% |
| Wednesday | 66°F | Chance Rain Showers | 15 mph NE | 46% |
| Wednesday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Thursday | 66°F | Chance Rain Showers | 14 mph NE | 32% |
| Thursday Night | 54°F | Chance Rain Showers | 8 to 12 mph N | 28% |
| Friday | 68°F | Chance Rain Showers | 13 mph N | 28% |
| Friday Night | 54°F | Slight Chance Rain Showers | 6 to 12 mph N | 21% |
| Saturday | 72°F | Slight Chance Rain Showers | 12 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for New Carrollton (38.966, -76.878). Updated through the day.
Growing snapshot for New Carrollton
Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
7b
More local growing data for New Carrollton: nearby ZIP 20784 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Glenn Dale Bell Stn, Md (4.9 mi from New Carrollton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.