Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St Marys County Airport (K2W6)

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

Overcast

67°F

19°C

Humidity	89%
Wind Speed	Calm
Barometer	29.80 in
Dewpoint	64°F (18°C)
Visibility	NA
Last update	17 Jun 3:15 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Calvert County

Overnight

Mostly cloudy with a 40 percent chance of showers. Lows in the mid 60s. Southeast winds around 5 mph.

Wednesday

Mostly sunny. Highs in the upper 80s. South winds 5 to 10 mph.

Wednesday Night

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph.

Thursday

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

Thursday Night

A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 70s. West winds 5 to 10 mph. Chance of rain 50 percent.

Juneteenth

Partly sunny with a 50 percent chance of showers. Highs in the upper 80s.

Friday Night

Mostly clear. Lows in the mid 60s.

Saturday

Sunny. Highs in the upper 80s.

Saturday Night

Clear. Lows in the mid 60s.

Sunday

Sunny. Highs in the upper 80s.

Sunday Night

Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 30 percent.