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

51°F

11°C

Humidity 39%
Wind Speed S 3 mph
Barometer 29.57 in (1002.6 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 14 Jan 12:56 pm EST
Extended Forecast for

Sandy Spring MD

  • This Afternoon

    This Afternoon: Cloudy, with a high near 51. South wind around 7 mph.

    High: 51 °F

    Cloudy

  • Tonight

    Tonight: Rain likely, mainly before 1am. Mostly cloudy, with a low around 26. Blustery, with a west wind 7 to 12 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 26 °F

    Rain Likely
    and Blustery

  • Thursday

    Thursday: Mostly sunny, with a high near 30. West wind around 18 mph, with gusts as high as 32 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 19. West wind 10 to 15 mph, with gusts as high as 29 mph.

    Low: 19 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 34. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 43. Chance of precipitation is 40%.

    High: 43 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 51. South wind around 7 mph.
Tonight
Rain likely, mainly before 1am. Mostly cloudy, with a low around 26. Blustery, with a west wind 7 to 12 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 30. West wind around 18 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 19. West wind 10 to 15 mph, with gusts as high as 29 mph.
Friday
Mostly sunny, with a high near 34. West wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
A chance of snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 43. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Mostly clear, with a low around 16.
M.L.King Day
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
12:53 pm EST Jan 14, 2026
Forecast Valid:
1pm EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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