National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

57°F

14°C

Humidity 64%
Wind Speed SE 7 mph
Barometer 30.10 in (1020.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 12 May 10:56 pm EDT
Extended Forecast for

Clarksville MD

  • Tonight

    Tonight: Partly cloudy, with a low around 54. South wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 73. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Low around 50. South wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. South wind 7 to 10 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 73. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Wednesday Night
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Low around 50. South wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 63. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 47. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Clarksville MD
 39.22°N 76.97°W (Elev. 551 ft)
Last Update:
10:53 pm EDT May 12, 2026
Forecast Valid:
11pm EDT May 12, 2026-6pm EDT May 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation