Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32° N Lon: 76.55° W Elev: 144 ft.

A Few Clouds

76°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 14 Aug 8:35 pm EDT
Detailed forecast for

Calvert County

Tonight
Mostly cloudy with a chance of showers with a slight chance of thunderstorms this evening, then partly cloudy after midnight. Lows in the lower 70s. North winds around 5 mph. Chance of rain 40 percent.
Saturday
Sunny. Highs in the upper 80s. Northeast winds around 5 mph.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. Southeast winds around 5 mph.
Sunday
Partly sunny in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 70 percent.
Sunday Night
A chance of thunderstorms. Showers likely. Lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph, becoming southwest after midnight. Chance of rain 70 percent.
Monday
Mostly sunny. Highs around 90.
Monday Night
Partly cloudy. Lows in the lower 70s.
Tuesday
Sunny. Highs in the mid 80s.
Tuesday Night
Mostly clear. Lows around 70.
Wednesday
Sunny. Highs in the upper 80s.
Wednesday Night
Partly cloudy. Lows in the mid 70s.
Thursday
Mostly sunny with a chance of showers. Highs around 90. Chance of rain 40 percent.
Thursday Night
Mostly cloudy with a 40 percent chance of showers. Lows in the lower 70s.
Friday
Mostly sunny with a 30 percent chance of showers. Highs in the mid 80s.



Basemap Options
Click map to change the forecast location
Loading map...
757 PM EDT Fri Aug 14 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database