Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

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

A Few Clouds

69°F

21°C

Humidity 58%
Wind Speed SW 9 mph
Barometer 29.81 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 22 Mar 12:35 pm EDT
Detailed forecast for

Calvert County

Rest Of Today
Areas of fog late this morning. Mostly sunny. Highs around 80. South winds 10 to 15 mph.
Tonight
Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. South winds 10 to 15 mph, becoming northwest 5 to 10 mph after midnight. Chance of rain 50 percent.
Monday
Mostly cloudy with showers likely with a slight chance of thunderstorms in the morning, then mostly sunny with a chance of rain in the afternoon. Cooler with highs in the upper 50s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent.
Monday Night
Clear in the evening, then becoming partly cloudy. Lows in the mid 30s. North winds 10 to 15 mph with gusts up to 25 mph.
Tuesday
Mostly sunny. Highs in the upper 40s. North winds 5 to 10 mph with gusts up to 20 mph, becoming northeast in the afternoon.
Tuesday Night
Partly cloudy. Lows in the mid 30s.
Wednesday
Partly sunny. Highs in the upper 50s.
Wednesday Night
Mostly cloudy. Lows in the mid 40s.
Thursday
Mostly cloudy. Highs in the mid 60s.
Thursday Night
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 40s.
Friday
Partly sunny with a 50 percent chance of rain. Highs in the upper 50s.
Friday Night
Mostly cloudy with a 30 percent chance of rain. Lows in the mid 30s.
Saturday
Mostly sunny. Highs in the upper 40s.



Basemap Options
Click map to change the forecast location
Loading map...
1057 AM EDT Sun Mar 22 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database