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

Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

23°F

-5°C

Humidity 78%
Wind Speed Calm
Barometer 30.20 in (1024.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 13 Feb 10:56 pm EST
Extended Forecast for

Derwood MD

  • Tonight

    Tonight: Mostly clear, with a low around 25. Southwest wind 3 to 5 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Southwest wind 3 to 6 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 32. Calm wind.

    Low: 32 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 44. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance Rain
    then Rain
    Likely

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 1am. Cloudy, with a low around 34. Light and variable wind. Chance of precipitation is 50%.

    Low: 34 °F

    Chance Rain

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Southwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 51. Southwest wind 3 to 6 mph.
Saturday Night
Increasing clouds, with a low around 32. Calm wind.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 44. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of rain, mainly before 1am. Cloudy, with a low around 34. Light and variable wind. Chance of precipitation is 50%.
Washington's Birthday
Mostly cloudy, with a high near 47.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 348 ft)
Last Update:
10:46 pm EST Feb 13, 2026
Forecast Valid:
11pm EST Feb 13, 2026-6pm EST Feb 20, 2026
 
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Additional Resources

Radar & Satellite Image

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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