National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Snow

34°F

1°C

Humidity NA
Wind Speed NW 14 mph
Barometer 29.93 in (1014.9 mb)
Dewpoint N/A
Visibility 1.25 mi
Wind Chill25°F (-4°C)
Last update 12 Mar 11:56 am EDT
Extended Forecast for

Ashton-Sandy Spring MD

  • This Afternoon

    This Afternoon: Rain and snow. Steady temperature around 38. Northwest wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 50. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 50 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54. West wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers. High near 67. Chance of precipitation is 90%.

    High: 67 °F

    Showers

Detailed Forecast

This Afternoon
Rain and snow. Steady temperature around 38. Northwest wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light west after midnight.
Friday
Partly sunny, with a high near 50. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.
Friday Night
Mostly clear, with a low around 39. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 54. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Mostly cloudy, with a high near 58.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Monday
Showers. High near 67. Chance of precipitation is 90%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ashton-Sandy Spring MD
 39.15°N 77.01°W (Elev. 449 ft)
Last Update:
10:53 am EDT Mar 12, 2026
Forecast Valid:
12pm EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation