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

26°F

-3°C

Humidity 51%
Wind Speed NW 20 G 25 mph
Barometer 29.91 in (1015.3 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 26 Jan 1:56 pm EST
Extended Forecast for

Derwood MD

Cold Weather Advisory January 26, 07:00pm until January 27, 11:00am
Click here for hazard details and duration
Cold Weather Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 25. West wind around 16 mph, with gusts as high as 32 mph.

    High: 25 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 3. Wind chill values as low as -6. West wind 7 to 11 mph, with gusts as high as 23 mph.

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 24. Wind chill values as low as -7. West wind 5 to 7 mph becoming south in the afternoon.

    High: 24 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 6. Wind chill values as low as -3. West wind 3 to 7 mph.

    Low: 6 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 21. Northwest wind 6 to 8 mph.

    High: 21 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 19.

    High: 19 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 25. West wind around 16 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 3. Wind chill values as low as -6. West wind 7 to 11 mph, with gusts as high as 23 mph.
Tuesday
Increasing clouds, with a high near 24. Wind chill values as low as -7. West wind 5 to 7 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 6. Wind chill values as low as -3. West wind 3 to 7 mph.
Wednesday
Mostly sunny, with a high near 21. Northwest wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 2.
Friday
Mostly sunny, with a high near 17.
Friday Night
Partly cloudy, with a low around 2.
Saturday
Partly sunny, with a high near 19.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 24.
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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:
12:54 pm EST Jan 26, 2026
Forecast Valid:
2pm EST Jan 26, 2026-6pm EST Feb 1, 2026
 
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Additional Resources

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Chance of Precipitation