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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

69°F

21°C

Humidity 70%
Wind Speed W 5 mph
Barometer 29.65 in (1004.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Mar 1:56 am EDT
Extended Forecast for

Washington Grove MD

  • Overnight

    Overnight: A chance of rain, mainly after 3am. Mostly cloudy, with a low around 41. West wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance Rain

  • 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 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F⇓

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 51. Breezy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 51 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 39 °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 40.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A chance of rain, mainly after 3am. Mostly cloudy, with a low around 41. West wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
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 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 30. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Friday
Partly sunny, with a high near 51. Breezy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Friday Night
Mostly clear, with a low around 39. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Monday
Showers. High near 67. 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 24.
Wednesday
Mostly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington Grove MD
 39.13°N 77.18°W (Elev. 459 ft)
Last Update:
1:53 am EDT Mar 12, 2026
Forecast Valid:
2am 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