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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

30°F

-1°C

Humidity 72%
Wind Speed Calm
Barometer 30.12 in (1021.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 17 Nov 10:56 pm EST
Extended Forecast for

Monrovia MD

  • Tonight

    Tonight: Mostly clear, with a low around 29. West wind 6 to 8 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain, mainly after 5pm. Increasing clouds, with a high near 46. Light west wind. Chance of precipitation is 30%.

    High: 46 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 38. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50. Light north wind.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 53.

    High: 53 °F

    Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Cloudy, with a low around 44. Chance of precipitation is 40%.

    Low: 44 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.

    High: 61 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 29. West wind 6 to 8 mph.
Tuesday
A chance of rain, mainly after 5pm. Increasing clouds, with a high near 46. Light west wind. Chance of precipitation is 30%.
Tuesday Night
Rain. Low around 38. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, with a high near 50. Light north wind.
Wednesday Night
Cloudy, with a low around 40. Calm wind.
Thursday
Cloudy, with a high near 53.
Thursday Night
A chance of rain after 1am. Cloudy, with a low around 44. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Saturday
A chance of rain. Partly sunny, with a high near 54. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Monrovia MD
 39.34°N 77.26°W (Elev. 548 ft)
Last Update:
9:53 pm EST Nov 17, 2025
Forecast Valid:
11pm EST Nov 17, 2025-6pm EST Nov 24, 2025
 
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