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

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

A Few Clouds and Breezy

26°F

-3°C

Humidity 44%
Wind Speed W 23 G 30 mph
Barometer 29.65 in (1005.9 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 15 Jan 3:56 pm EST
Extended Forecast for

Derwood MD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 21. West wind 7 to 15 mph, with gusts as high as 26 mph.

    Low: 21 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 36. South wind 7 to 9 mph.

    High: 36 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of snow showers after 1am. Increasing clouds, with a low around 30. South wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 46. South wind 6 to 9 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Northwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A slight chance of snow before 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 21. West wind 7 to 15 mph, with gusts as high as 26 mph.
Friday
Increasing clouds, with a high near 36. South wind 7 to 9 mph.
Friday Night
A chance of snow showers after 1am. Increasing clouds, with a low around 30. South wind 6 to 8 mph. Chance of precipitation is 30%.
Saturday
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 46. South wind 6 to 9 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Northwest wind around 6 mph. Chance of precipitation is 20%.
Sunday
A slight chance of snow before 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 19.
M.L.King Day
Sunny, with a high near 35.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Mostly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 348 ft)
Last Update:
3:53 pm EST Jan 15, 2026
Forecast Valid:
4pm EST Jan 15, 2026-6pm EST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation