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
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind around 8 mph.
7-day forecast for Glenn Dale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 8 mph E | 2% |
| Tonight | 70°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 7 mph E | 49% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 66% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms then Mostly Cloudy | 7 mph S | 53% |
| Thursday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 10 mph S | 15% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 18% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph SW | 37% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 49% |
| Saturday | 90°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 54% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 54% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 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 | 12% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 19% |
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 Aug 4, 2026.