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.

A Few Clouds

42°F

6°C

Humidity 41%
Wind Speed NW 14 G 21 mph
Barometer 30.04 in (1018.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 27 Nov 10:56 am EST
Extended Forecast for

Ashton-Sandy Spring MD

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 42. West wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. West wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 36 mph.

    High: 40 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. West wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41. West wind around 6 mph becoming calm in the afternoon.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Chance Rain
    then Rain
    Likely

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.

    Low: 31 °F

    Chance Rain

  • Monday

    Monday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Thanksgiving Day
Partly sunny, with a high near 42. West wind 14 to 16 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 27. West wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 36 mph.
Friday Night
Mostly clear, with a low around 25. West wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 41. West wind around 6 mph becoming calm in the afternoon.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 44. Chance of precipitation is 60%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 42.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ashton-Sandy Spring MD
 39.13°N 77.01°W (Elev. 400 ft)
Last Update:
9:53 am EST Nov 27, 2025
Forecast Valid:
11am EST Nov 27, 2025-6pm EST Dec 3, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation