Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Mostly Cloudy

78°F

26°C

Humidity 80%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 5 Sep 1:35 pm EDT
Extended Forecast for

2 Miles SE Cobb Island MD

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 3pm.  Mostly cloudy, with a high near 84. North wind around 6 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 7pm.  Partly cloudy, with a low around 68. Light northeast wind.  Chance of precipitation is 30%.

    Low: 68 °F

    Scattered
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83. Northeast wind around 8 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm  after midnight.

    Low: 65 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 82. Northeast wind around 6 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 3pm. Mostly cloudy, with a high near 84. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 68. Light northeast wind. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 83. Northeast wind around 8 mph.
Sunday Night
Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm after midnight.
Labor Day
Sunny, with a high near 82. Northeast wind around 6 mph.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
A slight chance of showers. Sunny, with a high near 90. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cobb Island MD
 38.32°N 76.89°W (Elev. 3 ft)
12:22 pm EDT Sep 5, 2026
1pm EDT Sep 5, 2026-6pm EDT Sep 11, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database