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 >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

61°F

16°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in (1017.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Apr 7:56 am EDT
Extended Forecast for

Sandy Spring MD

  • Today

    Today: Mostly sunny, with a high near 81. Southeast wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 3am.  Mostly cloudy, with a low around 51. Southeast wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Isolated
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly between 8am and 2pm.  High near 56. Northwest wind 13 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Northwest wind 5 to 9 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Isolated showers before 2pm.  Mostly sunny, with a high near 52. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 20%.

    High: 52 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm.  Partly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 81. Southeast wind 5 to 11 mph, with gusts as high as 22 mph.
Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 51. Southeast wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly between 8am and 2pm. High near 56. Northwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 41. Northwest wind 5 to 9 mph.
Monday
Isolated showers before 2pm. Mostly sunny, with a high near 52. Northwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Sandy Spring MD
 39.16°N 77.04°W (Elev. 469 ft)
7:53 am EDT Apr 18, 2026
8am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database