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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

52°F

11°C

Humidity 61%
Wind Speed NW 12 G 22 mph
Barometer 29.99 in (1017.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 19 Apr 1:56 pm EDT
Extended Forecast for

Sandy Spring MD

Freeze Watch April 21, 02:00am until April 21, 10:00am
Click here for hazard details and duration
Freeze Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 57. Northwest wind around 16 mph, with gusts as high as 29 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 52. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 18 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Partly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 57. Northwest wind around 16 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 40. Northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 52. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 31. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 59. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
A chance of showers after 2am. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
Last Update:
12:04 pm EDT Apr 19, 2026
Forecast Valid:
2pm EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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