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.

Light Rain

51°F

11°C

Humidity 61%
Wind Speed E 3 mph
Barometer 29.83 in (1011.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 15 Nov 10:56 am EST
Extended Forecast for

5 Miles SE Unionville MD

  • Today

    Today: Scattered sprinkles after 1pm. Cloudy, with a high near 58. South wind 5 to 7 mph.

    High: 58 °F

    Scattered
    Sprinkles

  • Tonight

    Tonight: Scattered showers or sprinkles before 1am, then scattered sprinkles between 1am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 50. South wind 8 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Scattered
    Showers

  • Sunday

    Sunday: Sunny, with a temperature falling to around 45 by 5pm. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 40 mph.

    High: 56 °F⇓

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.

    Low: 34 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 46. Northwest wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain after 1pm. Partly sunny, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Scattered sprinkles after 1pm. Cloudy, with a high near 58. South wind 5 to 7 mph.
Tonight
Scattered showers or sprinkles before 1am, then scattered sprinkles between 1am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 50. South wind 8 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a temperature falling to around 45 by 5pm. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 40 mph.
Sunday Night
Mostly clear, with a low around 34. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 46. Northwest wind 11 to 16 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 30.
Tuesday
A chance of rain after 1pm. Partly sunny, with a high near 44. Chance of precipitation is 30%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Partly sunny, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Unionville MD
 39.47°N 77.07°W (Elev. 778 ft)
Last Update:
9:53 am EST Nov 15, 2025
Forecast Valid:
11am EST Nov 15, 2025-6pm EST Nov 21, 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