Leonardtown, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Leonardtown, a town in St. Mary's County, Maryland.
This Afternoon
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 65 in the afternoon. Southeast wind around 6 mph.
7-day forecast for Leonardtown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 6 mph SE | 2% |
| Tonight | 52°F | Mostly Clear then Patchy Fog | 5 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 2 to 7 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy | 7 mph S | 2% |
| Thursday | 76°F | Slight Chance Light Rain | 5 to 9 mph S | 18% |
| Thursday Night | 63°F | Light Rain | 5 mph S | 83% |
| Friday | 70°F | Rain | 2 to 6 mph W | 91% |
| Friday Night | 52°F | Rain | 1 to 5 mph N | 84% |
| Saturday | 66°F | Mostly Sunny | 5 to 9 mph NW | 5% |
| Saturday Night | 42°F | Partly Cloudy | 6 mph NW | 5% |
| Sunday | 62°F | Mostly Sunny | 3 to 7 mph NW | 6% |
| Sunday Night | 41°F | Partly Cloudy then Slight Chance Light Rain | 5 mph W | 17% |
| Monday | 62°F | Slight Chance Light Rain then Sunny | 6 to 12 mph W | 17% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Leonardtown (38.304, -76.640). Updated through the day.
Growing snapshot for Leonardtown
Last spring frost
Mar 22
First fall frost
Nov 26
Growing season
248 days
Hardiness zone
7b
More local growing data for Leonardtown: nearby ZIP 20650 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
California
Callaway
Lexington Park
Mechanicsville
Piney Point
St. George Island
Tall Timbers
Wildewood
Climate data from the nearest NOAA station, Solomons, Md (10.6 mi from Leonardtown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.