Potomac Heights, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potomac Heights, a community in Charles County, Maryland.
Overnight
56°F
Mostly Clear
Mostly clear, with a low around 56. South wind around 6 mph.
7-day forecast for Potomac Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 5 to 9 mph S | 2% |
| Wednesday Night | 64°F | Mostly Cloudy then Slight Chance Light Rain | 7 to 10 mph S | 23% |
| Thursday | 74°F | Slight Chance Light Rain | 10 mph S | 24% |
| Thursday Night | 65°F | Light Rain Likely | 7 mph S | 63% |
| Friday | 70°F | Rain | 5 mph NE | 77% |
| Friday Night | 56°F | Light Rain Likely | 2 to 7 mph N | 71% |
| Saturday | 66°F | Mostly Sunny | 10 mph NW | 13% |
| Saturday Night | 50°F | Mostly Clear | 8 mph NW | 13% |
| Sunday | 63°F | Mostly Sunny | 7 mph W | 4% |
| Sunday Night | 48°F | Partly Cloudy then Slight Chance Light Rain | 5 to 8 mph NW | 18% |
| Monday | 63°F | Slight Chance Light Rain | 8 to 13 mph W | 21% |
| Monday Night | 46°F | Slight Chance Light Rain | 8 mph W | 21% |
| Tuesday | 65°F | Sunny | 7 to 10 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Potomac Heights (38.598, -77.132). Updated through the day.
Growing snapshot for Potomac Heights
Last spring frost
Mar 28
First fall frost
Nov 8
Growing season
226 days
Hardiness zone
7b
More local growing data for Potomac Heights: nearby ZIP 20658 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
La Plata
Pomfret
Port Tobacco Village
Rock Point
Waldorf
Climate data from the nearest NOAA station, Quantico Mcas, Va (9.1 mi from Potomac Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.