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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

52°F

11°C

Humidity 43%
Wind Speed W 6 mph
Barometer 29.88 in (1013.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 12 Nov 8:56 pm EST
Extended Forecast for

Rossmoor MD

  • Tonight

    Tonight: Mostly cloudy early, then gradual clearing, with a low around 37. West wind around 8 mph.

    Low: 37 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 55. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. West wind 3 to 6 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 54. West wind 5 to 9 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Light north wind.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.

    Low: 48 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy early, then gradual clearing, with a low around 37. West wind around 8 mph.
Thursday
Sunny, with a high near 55. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.
Thursday Night
Mostly clear, with a low around 32. West wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 54. West wind 5 to 9 mph.
Friday Night
Partly cloudy, with a low around 33. Light north wind.
Saturday
Partly sunny, with a high near 57.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
A chance of rain. Partly sunny, with a high near 50. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rossmoor MD
 39.09°N 77.08°W (Elev. 440 ft)
Last Update:
9:29 pm EST Nov 12, 2025
Forecast Valid:
9pm EST Nov 12, 2025-6pm EST Nov 19, 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