Potomac Heights, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potomac Heights, a community in Charles County, Maryland.
This Afternoon
84°F
Partly Sunny
Partly sunny, with a high near 84. North wind around 9 mph.
7-day forecast for Potomac Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Partly Sunny | 9 mph N | 10% |
| Tonight | 68°F | Mostly Cloudy | 8 mph N | 10% |
| Saturday | 79°F | Mostly Cloudy | 9 mph NE | 10% |
| Saturday Night | 71°F | Mostly Cloudy | 7 mph SE | 10% |
| Sunday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 13 mph S | 32% |
| Sunday Night | 70°F | Showers And Thunderstorms Likely | 5 to 9 mph NW | 60% |
| Monday | 76°F | Chance Rain Showers | 6 to 10 mph N | 42% |
| Monday Night | 65°F | Chance Rain Showers | 8 to 12 mph NE | 54% |
| Tuesday | 67°F | Rain Showers Likely | 14 mph NE | 61% |
| Tuesday Night | 60°F | Rain Showers Likely | 15 mph NE | 61% |
| Wednesday | 63°F | Chance Rain Showers | 15 mph NE | 50% |
| Wednesday Night | 60°F | Chance Showers And Thunderstorms | 14 mph NE | 50% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 14 mph NE | 47% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 34% |
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 Sep 18, 2026.