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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

37°F

3°C

Humidity 65%
Wind Speed NW 17 G 31 mph
Barometer 29.81 in (1011.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 23 Feb 2:56 pm EST
Extended Forecast for

Gaithersburg MD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. Northwest wind 13 to 17 mph, with gusts as high as 30 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 37. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 1am. Increasing clouds, with a low around 30. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 52. Southwest wind around 11 mph, with gusts as high as 21 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. West wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.

    High: 45 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely

  • Friday

    Friday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. Northwest wind 13 to 17 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 37. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of snow after 1am. Increasing clouds, with a low around 30. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 52. Southwest wind around 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 34. West wind around 6 mph becoming calm in the evening.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Partly sunny, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.15°N 77.21°W (Elev. 443 ft)
Last Update:
12:53 pm EST Feb 23, 2026
Forecast Valid:
3pm EST Feb 23, 2026-6pm EST Mar 2, 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