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

Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

25°F

-4°C

Humidity 29%
Wind Speed W 14 mph
Barometer 30.40 in (1032.0 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 20 Jan 4:56 pm EST
Extended Forecast for

Washington Grove MD

  • Tonight

    Tonight: Clear, with a low around 14. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 14 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 39. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

    High: 39 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. South wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 47. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. Northwest wind 3 to 6 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 40%.

    High: 17 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 13. Chance of precipitation is 80%.

    Low: 13 °F

    Snow

Detailed Forecast

Tonight
Clear, with a low around 14. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Increasing clouds, with a high near 39. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 30. South wind 8 to 11 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 47. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 25. Northwest wind 3 to 6 mph.
Friday
Partly sunny, with a high near 36.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
A chance of snow after 1pm. Mostly cloudy, with a high near 17. Chance of precipitation is 40%.
Saturday Night
Snow. Low around 13. Chance of precipitation is 80%.
Sunday
Snow, mainly before 1pm. High near 19. Chance of precipitation is 80%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
Mostly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washington Grove MD
 39.13°N 77.18°W (Elev. 459 ft)
Last Update:
3:53 pm EST Jan 20, 2026
Forecast Valid:
5pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation