La Plata, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Plata, a town in Charles County, Maryland.
Tonight
52°F
Mostly Clear then Patchy Fog
Patchy fog after 5am. Mostly clear, with a low around 52. South wind around 5 mph.
7-day forecast for La Plata
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear then Patchy Fog | 5 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy | 8 mph S | 14% |
| Thursday | 76°F | Slight Chance Light Rain | 7 to 10 mph S | 21% |
| Thursday Night | 62°F | Light Rain Likely | 3 to 7 mph S | 70% |
| Friday | 70°F | Rain | 6 mph NW | 80% |
| Friday Night | 51°F | Light Rain Likely | 2 to 6 mph N | 73% |
| Saturday | 66°F | Mostly Sunny | 7 to 10 mph NW | 11% |
| Saturday Night | 43°F | Mostly Clear | 7 mph NW | 11% |
| Sunday | 62°F | Mostly Sunny | 8 mph NW | 4% |
| Sunday Night | 41°F | Partly Cloudy then Slight Chance Light Rain | 6 mph NW | 18% |
| Monday | 62°F | Slight Chance Light Rain | 6 to 15 mph W | 20% |
| Monday Night | 39°F | Slight Chance Light Rain | 7 mph W | 20% |
| Tuesday | 65°F | Sunny | 7 to 12 mph SW | 12% |
Forecast source: National Weather Service (api.weather.gov) for La Plata (38.543, -76.970). Updated through the day.
Growing snapshot for La Plata
Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
195 days
Hardiness zone
7b
More local growing data for La Plata: nearby ZIP 20646 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Benedict
Bensville
Brandywine
Bryans Road
Bryantown
Charlotte Hall
Cobb Island
Golden Beach
Hughesville
Indian Head
Pomfret
Port Tobacco Village
Potomac Heights
Rock Point
Waldorf
Climate data from the nearest NOAA station, Mechanicsville 5 Ne, Md (14.9 mi from La Plata). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.