Glassmanor, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glassmanor, a community in Prince George's County, Maryland.
Tonight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 5 mph.
7-day forecast for Glassmanor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 75°F | Mostly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Chance Light Rain | 8 mph S | 25% |
| Thursday | 75°F | Chance Light Rain | 7 to 10 mph S | 34% |
| Thursday Night | 63°F | Light Rain Likely | 3 to 7 mph S | 59% |
| Friday | 70°F | Rain Likely | 6 mph NW | 74% |
| Friday Night | 53°F | Light Rain Likely | 2 to 6 mph NW | 73% |
| Saturday | 65°F | Mostly Sunny | 7 to 10 mph NW | 12% |
| Saturday Night | 45°F | Partly Cloudy | 8 mph NW | 12% |
| Sunday | 62°F | Mostly Sunny | 8 mph W | 5% |
| Sunday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 19% |
| Monday | 62°F | Slight Chance Light Rain | 8 to 14 mph W | 20% |
| Monday Night | 42°F | Slight Chance Light Rain | 5 to 9 mph W | 20% |
| Tuesday | 65°F | Sunny | 7 to 12 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Glassmanor (38.818, -76.983). Updated through the day.
Growing snapshot for Glassmanor
Last spring frost
Apr 3
First fall frost
Nov 8
Growing season
217 days
Hardiness zone
8a
More local growing data for Glassmanor: nearby ZIP 20745 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Oxon Hill, Md (0.7 mi from Glassmanor). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.