Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

82°F

28°C

Humidity 38%
Wind Speed Calm
Barometer 29.96 in (1015.7 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Jun 6:56 pm EDT
Extended Forecast for

Damascus MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 87. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Partly Sunny
    then Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am.  Low around 65. South wind around 6 mph becoming light and variable  in the evening.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm.  Partly sunny, with a high near 79. North wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Northwest wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 65. Northwest wind around 6 mph becoming calm in the evening.
Monday
Showers and possibly a thunderstorm. High near 87. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Low around 65. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm. Partly sunny, with a high near 79. North wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 59. Northwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.27°N 77.22°W (Elev. 699 ft)
4:52 pm EDT Jun 21, 2026
7pm EDT Jun 21, 2026-6pm EDT Jun 28, 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