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.

Fair

30°F

-1°C

Humidity 64%
Wind Speed Calm
Barometer 30.21 in (1024.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 26 Dec 7:56 am EST
Extended Forecast for

Derwood MD

  • Today

    Today: A slight chance of freezing rain and sleet between noon and 1pm, then a chance of rain and sleet. Cloudy, with a high near 33. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Tonight

    Tonight: Rain and sleet before 9pm, then a chance of rain between 9pm and midnight. Low around 33. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%. Little or no sleet accumulation expected.

    Low: 33 °F

    Rain/Sleet
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 43. North wind around 7 mph.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. Light east wind.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain. Cloudy, with a high near 47. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly before 1pm. Cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of freezing rain and sleet between noon and 1pm, then a chance of rain and sleet. Cloudy, with a high near 33. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Tonight
Rain and sleet before 9pm, then a chance of rain between 9pm and midnight. Low around 33. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%. Little or no sleet accumulation expected.
Saturday
Partly sunny, with a high near 43. North wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 31. Light east wind.
Sunday
A chance of rain. Cloudy, with a high near 47. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 40%.
Sunday Night
A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.
Monday
Rain likely, mainly before 1pm. Cloudy, with a high near 60. Chance of precipitation is 70%.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 24.
New Year's Day
Partly sunny, with a high near 35.
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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:
6:53 am EST Dec 26, 2025
Forecast Valid:
8am EST Dec 26, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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