Cobb Island, MD Weather & Growing Conditions
Today
85°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. East wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 9 mph E | 23% |
| Tonight | 73°F | Chance Showers And Thunderstorms | 3 to 7 mph E | 69% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 3 to 7 mph S | 66% |
| Wednesday Night | 75°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph S | 20% |
| Thursday | 90°F | Mostly Sunny | 6 to 12 mph SW | 10% |
| Thursday Night | 77°F | Mostly Clear | 7 to 10 mph SW | 10% |
| Friday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 10 mph SW | 19% |
| Friday Night | 77°F | Chance Showers And Thunderstorms | 9 mph SW | 35% |
| Saturday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 9 mph SW | 38% |
| Saturday Night | 75°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 38% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 23% |
| Sunday Night | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SW | 23% |
| Monday | 88°F | Mostly Sunny | 2 to 6 mph SW | 13% |
| Monday Night | 77°F | Partly Cloudy | 6 mph SW | 14% |
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 (17.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.