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.

Fair

41°F

5°C

Humidity 39%
Wind Speed Calm
Barometer 30.48 in (1034.3 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 29 Nov 2:56 pm EST
Extended Forecast for

2 Miles NNE Rossmoor MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 41. Light and variable wind.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain between 9am and 3pm. Mostly cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 45 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 18 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow and sleet between 1am and 4am, then a chance of rain, snow, and sleet after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: Rain, mainly after 7am. High near 39. Chance of precipitation is 90%.

    High: 39 °F

    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Partly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 41. Light and variable wind.
Tonight
Increasing clouds, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Sunday
A chance of rain between 9am and 3pm. Mostly cloudy, with a high near 45. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 29. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
A chance of snow and sleet between 1am and 4am, then a chance of rain, snow, and sleet after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Tuesday
Rain, mainly after 7am. High near 39. Chance of precipitation is 90%.
Tuesday Night
A chance of rain before 1am. Partly cloudy, with a low around 26. Chance of precipitation is 40%.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Rossmoor MD
 39.11°N 77.04°W (Elev. 427 ft)
Last Update:
12:53 pm EST Nov 29, 2025
Forecast Valid:
2pm EST Nov 29, 2025-6pm EST Dec 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation