Harman US

Potomac Heights, MD Weather & Growing Conditions

This Afternoon
69°F
Sunny
Sunny, with a high near 69. Southeast wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 69°F Sunny 6 mph SE 1%
Tonight 56°F Mostly Clear 8 mph S 2%
Wednesday 73°F Mostly Sunny 5 to 9 mph S 2%
Wednesday Night 64°F Mostly Cloudy then Slight Chance Light Rain 8 to 13 mph S 23%
Thursday 74°F Slight Chance Light Rain 8 to 12 mph S 24%
Thursday Night 65°F Light Rain Likely 8 mph S 64%
Friday 69°F Light Rain 2 to 6 mph NW 77%
Friday Night 55°F Light Rain Likely 2 to 7 mph N 70%
Saturday 66°F Mostly Sunny 10 mph NW 13%
Saturday Night 48°F Mostly Clear 9 mph NW 13%
Sunday 63°F Mostly Sunny 7 mph W 4%
Sunday Night 47°F Partly Cloudy then Slight Chance Light Rain 5 to 8 mph NW 18%
Monday 63°F Slight Chance Light Rain 9 to 14 mph W 21%
Monday Night 45°F Slight Chance Light Rain 9 mph W 21%

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 Nov 4, 2026.