Charlestown, MD Weather & Growing Conditions
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 6 mph S | 1% |
| Tonight | 60°F | Mostly Cloudy | 3 to 7 mph S | 6% |
| Thursday | 72°F | Light Rain Likely | 6 to 9 mph S | 60% |
| Thursday Night | 61°F | Light Rain Likely | 1 to 5 mph SW | 59% |
| Friday | 70°F | Chance Light Rain | 3 mph NW | 51% |
| Friday Night | 49°F | Chance Light Rain then Mostly Cloudy | 1 to 7 mph N | 38% |
| Saturday | 63°F | Mostly Sunny | 9 mph NW | 7% |
| Saturday Night | 42°F | Partly Cloudy | 9 mph NW | 7% |
| Sunday | 61°F | Mostly Sunny | 6 to 10 mph NW | 5% |
| Sunday Night | 40°F | Mostly Clear | 7 mph W | 0% |
| Monday | 61°F | Sunny | 6 to 10 mph W | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 to 9 mph W | 1% |
| Tuesday Night | 40°F | Mostly Clear | 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Charlestown, MD
Last spring frost
Apr 3
First fall frost
Nov 6
Growing season
217 days
Hardiness zone
7b
Explore more for Charlestown, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Conowingo Dam, Md (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.