Cobb Island, MD Weather & Growing Conditions
Overnight
69°F
Partly Cloudy
Partly cloudy, with a low around 69. Northeast wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Partly Cloudy | 12 mph NE | 4% |
| Saturday | 80°F | Mostly Sunny | 5 to 12 mph E | 4% |
| Saturday Night | 70°F | Mostly Cloudy | 8 to 13 mph SE | 11% |
| Sunday | 84°F | Partly Sunny then Slight Chance Rain Showers | 8 to 12 mph S | 15% |
| Sunday Night | 69°F | Showers And Thunderstorms Likely | 5 to 8 mph W | 63% |
| Monday | 73°F | Chance Rain Showers | 10 mph NE | 53% |
| Monday Night | 65°F | Chance Rain Showers | 12 mph NE | 38% |
| Tuesday | 69°F | Rain Showers Likely | 12 to 17 mph NE | 55% |
| Tuesday Night | 62°F | Rain Showers Likely | 21 mph NE | 55% |
| Wednesday | 66°F | Chance Rain Showers | 18 to 22 mph NE | 47% |
| Wednesday Night | 62°F | Chance Rain Showers | 18 to 22 mph NE | 47% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 17 to 22 mph NE | 44% |
| Thursday Night | 60°F | Chance Showers And Thunderstorms | 15 to 21 mph N | 40% |
| Friday | 68°F | Slight Chance Rain Showers | 14 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cobb Island, MD
Last spring frost
Apr 17
First fall frost
Oct 27
Growing season
195 days
Hardiness zone
7b
Explore more for Cobb Island, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Mechanicsville 5 Ne, Md (17 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.