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

33°F

1°C

Humidity 45%
Wind Speed NW 9 mph
Barometer 30.20 in (1024.7 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 13 Feb 1:56 pm EST
Extended Forecast for

Derwood MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 37. Northwest wind around 8 mph.

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. West wind 5 to 9 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain, mainly after 1pm. Cloudy, with a high near 43. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 43 °F

    Slight Chance
    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Cloudy, with a low around 34. 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: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 37. Northwest wind around 8 mph.
Tonight
Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.
Saturday
Sunny, with a high near 51. West wind 5 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 32. Calm wind.
Sunday
A chance of rain, mainly after 1pm. Cloudy, with a high near 43. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
A chance of rain. Cloudy, with a low around 34. Chance of precipitation is 50%.
Washington's Birthday
Mostly cloudy, with a high near 47.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 348 ft)
Last Update:
12:53 pm EST Feb 13, 2026
Forecast Valid:
2pm EST Feb 13, 2026-6pm EST Feb 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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