Lexington Park, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lexington Park, a community in St. Mary's County, Maryland.
Today
79°F
Mostly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 79. Northeast wind 5 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lexington Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph NE | 17% |
| Tonight | 67°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph SE | 18% |
| Sunday | 83°F | Partly Sunny | 5 to 10 mph S | 8% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 3 to 9 mph W | 59% |
| Monday | 75°F | Rain Showers Likely | 8 to 13 mph N | 59% |
| Monday Night | 62°F | Chance Rain Showers | 9 to 13 mph NE | 37% |
| Tuesday | 72°F | Chance Rain Showers | 13 to 20 mph NE | 51% |
| Tuesday Night | 60°F | Chance Rain Showers | 14 to 18 mph NE | 51% |
| Wednesday | 68°F | Chance Rain Showers | 16 to 22 mph NE | 44% |
| Wednesday Night | 60°F | Chance Rain Showers | 15 to 20 mph NE | 44% |
| Thursday | 68°F | Chance Showers And Thunderstorms | 16 to 22 mph NE | 44% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms | 13 to 18 mph N | 39% |
| Friday | 70°F | Slight Chance Rain Showers | 17 mph N | 19% |
| Friday Night | 57°F | Slight Chance Rain Showers | 9 to 14 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Lexington Park (38.249, -76.444). Updated through the day.
Growing snapshot for Lexington Park
Last spring frost
Mar 29
First fall frost
Nov 15
Growing season
230 days
Hardiness zone
8a
More local growing data for Lexington Park: nearby ZIP 20653 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Patuxent River Nas, Md (4.4 mi from Lexington Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.