La Plata, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Plata, a town in Charles County, Maryland.
Today
85°F
Partly Sunny
Partly sunny, with a high near 85. Northeast wind around 8 mph.
7-day forecast for La Plata
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny | 8 mph NE | 14% |
| Tonight | 69°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 7 mph E | 67% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 66% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph S | 32% |
| Thursday | 90°F | Mostly Sunny | 7 to 12 mph SW | 10% |
| Thursday Night | 73°F | Partly Cloudy | 6 to 10 mph SW | 10% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 9 mph SW | 25% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 39% |
| Saturday | 90°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 45% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 6 mph SW | 45% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 21% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 21% |
| Monday | 92°F | Mostly Sunny | 6 mph W | 8% |
| Monday Night | 72°F | Partly Cloudy | 6 mph SW | 14% |
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 Aug 4, 2026.