Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

Storm Moving Through the Upper Midwest to the Northeast

Heavy rain and the potential for strong thunderstorms along and east of the Appalachians will precede a cold front, while snow showers will fall behind the front in the Ohio Valley, Upper Midwest and Great Lake States. Rain-on-snow flooding is possible in portions of New England and New York State. Rain and high elevation snow will return to the west. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

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

Mostly Cloudy

54°F

12°C

Humidity 72%
Wind Speed NW 7 mph
Barometer 29.63 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 25 Feb 6:41 pm EST
Detailed forecast for

Calvert County

Tonight
Partly cloudy with a chance of showers this evening... Then mostly clear after midnight. Cooler with lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 30 percent.
Sunday
Sunny, cooler with highs in the upper 40s. West winds 10 to 15 mph with gusts up to 30 mph.
Sunday Night
Mostly clear in the evening...then becoming partly cloudy. Lows in the mid 30s. Southwest winds 5 to 10 mph.
Monday
Mostly cloudy. Highs in the upper 50s. South winds 5 to 10 mph.
Monday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s. South winds 5 to 10 mph.
Tuesday
Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s.
Tuesday Night
Mostly cloudy with a 40 percent chance of showers. Lows in the mid 50s.
Wednesday
Showers likely. Highs in the lower 70s. Chance of rain 60 percent.
Wednesday Night
Showers likely. Lows around 50. Chance of rain 60 percent.
Thursday
Mostly sunny. Highs in the upper 50s.
Thursday Night
Mostly clear. Lows in the upper 30s.
Friday
Mostly sunny. Highs around 50.
Friday Night
Mostly clear. Lows in the lower 30s.
Saturday
Mostly sunny. Highs in the upper 40s.



Click Map For Forecast
629 PM EST Sat Feb 25 2017
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database