Glenn Dale, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenn Dale, a community in Prince George's County, Maryland.
Today
79°F
Partly Sunny
Partly sunny, with a high near 79. East wind around 7 mph.
7-day forecast for Glenn Dale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Partly Sunny | 7 mph E | 4% |
| Tonight | 65°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph SE | 17% |
| Sunday | 84°F | Chance Rain Showers | 6 to 12 mph S | 25% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 2 to 9 mph W | 71% |
| Monday | 72°F | Chance Rain Showers | 10 mph NE | 30% |
| Monday Night | 58°F | Chance Rain Showers | 7 to 10 mph NE | 39% |
| Tuesday | 66°F | Chance Rain Showers | 12 to 15 mph NE | 53% |
| Tuesday Night | 55°F | Chance Rain Showers | 15 mph NE | 53% |
| Wednesday | 64°F | Chance Rain Showers | 16 mph NE | 43% |
| Wednesday Night | 55°F | Chance Rain Showers | 12 to 15 mph NE | 45% |
| Thursday | 64°F | Chance Rain Showers | 15 mph NE | 45% |
| Thursday Night | 53°F | Chance Rain Showers | 8 to 14 mph N | 37% |
| Friday | 68°F | Slight Chance Rain Showers | 12 mph N | 21% |
| Friday Night | 53°F | Slight Chance Rain Showers | 7 to 10 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Glenn Dale (38.984, -76.800). Updated through the day.
Growing snapshot for Glenn Dale
Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
7b
More local growing data for Glenn Dale: nearby ZIP 20769 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Glenn Dale Bell Stn, Md (1.6 mi from Glenn Dale). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.