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

36°F

2°C

Humidity 100%
Wind Speed S 6 mph
Barometer 30.15 in (1022.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 30 Nov 12:56 pm EST
Extended Forecast for

2 Miles ENE Rossmoor MD

  • This Afternoon

    This Afternoon: A slight chance of rain before 4pm. Cloudy, with a high near 43. South wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Northwest wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • 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 rain and sleet likely, possibly mixed with snow. Increasing clouds, with a low around 28. Southeast wind 3 to 5 mph. Chance of precipitation is 70%. New snow and sleet accumulation of less than a half inch possible.

    Low: 28 °F

    Mostly Cloudy
    then Wintry
    Mix Likely

  • Tuesday

    Tuesday: Rain, possibly mixed with snow and sleet, becoming all rain after 10am. High near 38. Light and variable wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

    High: 38 °F

    Wintry Mix
    then Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of rain before 4pm. Cloudy, with a high near 43. South wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Northwest wind 6 to 13 mph, with gusts as high as 24 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 rain and sleet likely, possibly mixed with snow. Increasing clouds, with a low around 28. Southeast wind 3 to 5 mph. Chance of precipitation is 70%. New snow and sleet accumulation of less than a half inch possible.
Tuesday
Rain, possibly mixed with snow and sleet, becoming all rain after 10am. High near 38. Light and variable wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 33.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Rossmoor MD
 39.11°N 77.04°W (Elev. 427 ft)
Last Update:
12:53 pm EST Nov 30, 2025
Forecast Valid:
1pm EST Nov 30, 2025-6pm EST Dec 6, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation