Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Mostly Cloudy

76°F

24°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.08 in
Dewpoint 76°F (24°C)
Visibility NA
Heat Index75°F (24°C)
Last update 5 Aug 1:35 am EDT
Extended Forecast for

Barstow MD

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 90. Heat index values as high as 100. Southwest wind 7 to 11 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 74. South wind around 7 mph.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am.  Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Wednesday
Showers and thunderstorms likely, mainly before 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 73. South wind around 6 mph.
Thursday
Sunny, with a high near 90. Heat index values as high as 100. Southwest wind 7 to 11 mph.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. South wind around 7 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Barstow MD
 38.53°N 76.63°W (Elev. 151 ft)
10:53 pm EDT Aug 4, 2026
1am EDT Aug 5, 2026-6pm EDT Aug 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