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

47°F

8°C

Humidity 29%
Wind Speed NW 13 G 17 mph
Barometer 30.49 in (1034.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 28 Mar 2:56 pm EDT
Extended Forecast for

Derwood MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 29. Light and variable wind.

    Low: 29 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 70. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 70 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Mostly Sunny
    then Rain
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Northwest wind around 14 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 29. Light and variable wind.
Sunday
Mostly sunny, with a high near 60. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 70. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Monday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Rain likely after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Wednesday Night
Rain. Low around 46. Chance of precipitation is 80%.
Thursday
Rain likely. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Thursday Night
Rain likely. Cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Rain likely. Cloudy, with a high near 51. Chance of precipitation is 70%.
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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:
2:23 pm EDT Mar 28, 2026
Forecast Valid:
2pm EDT Mar 28, 2026-6pm EDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation