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.

Fog/Mist

48°F

9°C

Humidity NA
Wind Speed Calm
Barometer 30.16 in (1022.7 mb)
Dewpoint N/A
Visibility 1.75 mi
Last update 10 Jan 12:56 am EST
Extended Forecast for

Sandy Spring MD

  • Overnight

    Overnight: A chance of rain after 5am. Cloudy, with a low around 43. North wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 5pm. High near 46. East wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 46 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday

    Sunday: A slight chance of rain after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 43. Breezy, with a northwest wind 11 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. West wind 15 to 18 mph, with gusts as high as 37 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of rain after 5am. Cloudy, with a low around 43. North wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
Rain, mainly before 5pm. High near 46. East wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 43. Breezy, with a northwest wind 11 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 28. West wind 15 to 18 mph, with gusts as high as 37 mph.
Monday
Sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 36. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 35.
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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:
12:54 am EST Jan 10, 2026
Forecast Valid:
2am EST Jan 10, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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