Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

A Few Clouds

83°F

28°C

Humidity 72%
Wind Speed SE 8 mph
Barometer 29.94 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Aug 4:55 pm EDT
Extended Forecast for

3 Miles SSE Issue MD

Severe T-storm Watch until August 27, 10:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 27, 10:00pm

    NOW until 10:00pm Thu

    Severe T-storm Watch

  • This Afternoon

    High: 88 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 2am. Some of the storms could be severe.  Cloudy, then gradually becoming partly cloudy, with a low around 72. Southeast wind 5 to 8 mph becoming light and variable  after midnight.  Chance of precipitation is 20%.

    Low: 72 °F

    Severe
    Thunderstorms

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Patchy fog between 7am and 8am.  Otherwise, partly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 40%.

    High: 86 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 86. North wind around 5 mph.

    High: 86 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 88. Southeast wind around 9 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 72. Southeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 86. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Issue MD
 38.27°N 76.85°W (Elev. 3 ft)
4:53 pm EDT Aug 27, 2026
5pm EDT Aug 27, 2026-6pm EDT Sep 3, 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