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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

52°F

11°C

Humidity 41%
Wind Speed W 8 mph
Barometer 30.09 in (1020.7 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 14 Nov 1:56 pm EST
Extended Forecast for

3 Miles SE Unionville MD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 54. West wind around 7 mph.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain after 4pm. Mostly cloudy, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 61 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain, mainly before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 51. West wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 51 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 55. Northwest wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Partly sunny, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 54. West wind around 7 mph.
Tonight
Mostly cloudy, with a low around 39. Calm wind.
Saturday
A slight chance of rain after 4pm. Mostly cloudy, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of rain, mainly before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 51. West wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 55. Northwest wind 11 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
A chance of rain after 1pm. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Unionville MD
 39.49°N 77.06°W (Elev. 699 ft)
Last Update:
12:53 pm EST Nov 14, 2025
Forecast Valid:
2pm EST Nov 14, 2025-6pm EST Nov 20, 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