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.

Partly Cloudy

51°F

11°C

Humidity 46%
Wind Speed S 10 mph
Barometer 30.36 in (1029.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 25 Mar 11:56 am EDT
Extended Forecast for

Sandy Spring MD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 57. South wind 7 to 9 mph.

    High: 57 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. South wind around 8 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Increasing clouds, with a low around 52. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Slight Chance
    Rain then
    Rain Likely

  • Friday

    Friday: Rain likely, mainly before 2pm. Mostly cloudy, with a high near 60. North wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 57. South wind 7 to 9 mph.
Tonight
Mostly cloudy, with a low around 46. South wind around 8 mph.
Thursday
Partly sunny, with a high near 72. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Rain likely, mainly after 2am. Increasing clouds, with a low around 52. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 2pm. Mostly cloudy, with a high near 60. North wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday Night
A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
10:56 am EDT Mar 25, 2026
Forecast Valid:
12pm EDT Mar 25, 2026-6pm EDT Mar 31, 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