Harman US

La Plata, MD Weather & Growing Conditions

Today
85°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 4pm and 5pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Northeast wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 85°F Partly Sunny then Slight Chance Showers And Thunderstorms 8 mph NE 17%
Tonight 70°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 2 to 7 mph E 66%
Wednesday 86°F Showers And Thunderstorms Likely 3 to 7 mph SE 66%
Wednesday Night 72°F Chance Showers And Thunderstorms then Partly Cloudy 6 mph S 28%
Thursday 90°F Mostly Sunny 6 to 10 mph SW 10%
Thursday Night 73°F Mostly Clear 6 to 9 mph SW 10%
Friday 90°F Mostly Sunny then Slight Chance Showers And Thunderstorms 9 mph SW 23%
Friday Night 72°F Chance Showers And Thunderstorms 5 to 8 mph SW 37%
Saturday 89°F Mostly Sunny then Chance Showers And Thunderstorms 7 mph SW 43%
Saturday Night 70°F Chance Showers And Thunderstorms 6 mph SW 43%
Sunday 89°F Mostly Sunny then Slight Chance Showers And Thunderstorms 5 mph W 22%
Sunday Night 72°F Slight Chance Showers And Thunderstorms then Partly Cloudy 5 mph SW 22%
Monday 91°F Sunny 2 to 6 mph W 8%
Monday Night 72°F Partly Cloudy 6 mph SW 13%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for La Plata, MD

Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
195 days
Hardiness zone
7b

Explore more for La Plata, MD: full frost dates · planting calendar · Maryland frost dates

Climate data from the nearest NOAA station, Mechanicsville 5 Ne, Md (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.