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.

Overcast

62°F

17°C

Humidity 80%
Wind Speed NW 20 G 30 mph
Barometer 29.65 in (1005.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Mar 4:56 am EDT
Extended Forecast for

Sandy Spring MD

  • Overnight

    Overnight: A chance of rain. Cloudy, with a steady temperature around 58. Breezy, with a northwest wind around 20 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.

    Low: 58 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: Rain before 11am, then rain and snow. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 44 °F⇓

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light and variable 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 38. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    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

Detailed Forecast

Overnight
A chance of rain. Cloudy, with a steady temperature around 58. Breezy, with a northwest wind around 20 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.
Thursday
Rain before 11am, then rain and snow. Temperature falling to around 35 by 1pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light and variable 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 38. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 54.
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. Breezy. Chance of precipitation is 90%.
Monday Night
A chance of showers. 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 23.
Wednesday
Mostly sunny, with a high near 41.
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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:
4:53 am EDT Mar 12, 2026
Forecast Valid:
5am EDT Mar 12, 2026-6pm EDT Mar 18, 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