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
84°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 3pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Northeast wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lexington Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 8 mph NE | 29% |
| Tonight | 71°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 72% |
| Wednesday | 86°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 to 9 mph S | 59% |
| Wednesday Night | 74°F | Partly Cloudy | 6 to 9 mph S | 14% |
| Thursday | 90°F | Sunny | 7 to 12 mph S | 10% |
| Thursday Night | 75°F | Mostly Clear | 7 to 10 mph S | 10% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph SW | 18% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 34% |
| Saturday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph SW | 37% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 37% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 22% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 22% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 15% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 18% |
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 Aug 4, 2026.