Harman US

Potomac Heights, MD Weather & Growing Conditions

Today
83°F
Partly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny, with a high near 83. Northeast wind around 6 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
Today 83°F Partly Sunny then Slight Chance Rain Showers 6 mph NE 15%
Tonight 73°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 2 to 6 mph E 70%
Wednesday 84°F Showers And Thunderstorms Likely 5 mph SE 67%
Wednesday Night 75°F Chance Showers And Thunderstorms 5 to 8 mph S 38%
Thursday 87°F Mostly Sunny 8 to 12 mph S 9%
Thursday Night 76°F Mostly Clear 8 to 12 mph SW 9%
Friday 87°F Mostly Sunny then Chance Showers And Thunderstorms 6 to 9 mph SW 28%
Friday Night 74°F Chance Showers And Thunderstorms 7 mph SW 38%
Saturday 88°F Mostly Sunny then Chance Showers And Thunderstorms 5 mph SW 44%
Saturday Night 73°F Chance Showers And Thunderstorms 5 mph SW 44%
Sunday 88°F Mostly Sunny then Slight Chance Showers And Thunderstorms 3 mph W 20%
Sunday Night 74°F Slight Chance Showers And Thunderstorms then Partly Cloudy 3 mph SW 20%
Monday 89°F Mostly Sunny 5 mph W 8%
Monday Night 75°F Partly Cloudy 5 mph SW 14%

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

Growing snapshot for Potomac Heights, MD

Last spring frost
Mar 28
First fall frost
Nov 8
Growing season
226 days
Hardiness zone
7b

Explore more for Potomac Heights, MD: full frost dates · planting calendar · Maryland frost dates

Climate data from the nearest NOAA station, Quantico Mcas, Va (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.