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Severe Thunderstorms With Heavy Rain from Great Lakes to Mid-Atlantic; Excessive Heat For Central/Southern U.S. to Mid-Atlantic

Severe thunderstorms are possible today into Sunday across the upper Great Lakes region to the northern Mid-Atlantic. Damaging winds, large hail, and flooding will be the primary threats with these storms. Meanwhile, dangerous heat will continue through Sunday across the central and southern U.S. into the Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Mostly Cloudy

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 29.82 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 22 Jul 7:37 pm EDT
Extended Forecast for

4 Miles SSE Leonardtown MD

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce gusty winds and heavy rain.  Low around 79. Southwest wind 6 to 8 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    Low: 79 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 11am.  Partly sunny, with a high near 95. Heat index values as high as 105. West wind around 8 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    High: 95 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 76. Southwest wind 6 to 8 mph.  Chance of precipitation is 50%.

    Chance
    Showers

    Low: 76 °F

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 8am.  Mostly sunny, with a high near 92. West wind 5 to 7 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 92 °F

  • Monday
    Night

    Monday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Light and variable wind becoming south around 5 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 74 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    Mostly Sunny

    High: 86 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 71.

    Partly Cloudy

    Low: 71 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    Mostly Sunny

    High: 84 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 72.

    Partly Cloudy

    Low: 72 °F

Detailed Forecast

Tonight
Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce gusty winds and heavy rain. Low around 79. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 95. Heat index values as high as 105. West wind around 8 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 50%.
Monday
A slight chance of showers, with thunderstorms also possible after 8am. Mostly sunny, with a high near 92. West wind 5 to 7 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Light and variable wind becoming south around 5 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
4 Miles SSE Leonardtown MD
 38.24°N 76.62°W (Elev. 23 ft)
7:28 pm EDT Jul 22, 2017
7pm EDT Jul 22, 2017-6pm EDT Jul 29, 2017
 
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