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

66°F

19°C

Humidity 75%
Wind Speed N 3 mph
Barometer 29.78 in (1009.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 27 Mar 4:56 am EDT
Extended Forecast for

Sandy Spring MD

  • Overnight

    Overnight: Scattered showers. Cloudy, with a steady temperature around 68. Light north wind. Chance of precipitation is 50%.

    Low: 68 °F

    Scattered
    Showers

  • Friday

    Friday: Showers, mainly before 5pm. Temperature falling to around 46 by 5pm. North wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F⇓

    Showers

  • Friday Night

    Friday Night: Scattered rain showers before 8pm, then scattered sprinkles between 8pm and midnight, then scattered sprinkles and flurries after midnight. Mostly cloudy, with a low around 31. North wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Scattered
    Showers then
    Scattered
    Sprinkles/Flurries

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Overnight
Scattered showers. Cloudy, with a steady temperature around 68. Light north wind. Chance of precipitation is 50%.
Friday
Showers, mainly before 5pm. Temperature falling to around 46 by 5pm. North wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Scattered rain showers before 8pm, then scattered sprinkles between 8pm and midnight, then scattered sprinkles and flurries after midnight. Mostly cloudy, with a low around 31. North wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 46. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 64.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
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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:
5:28 am EDT Mar 27, 2026
Forecast Valid:
5am EDT Mar 27, 2026-6pm EDT Apr 2, 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