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

Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fog/Mist

30°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 30.57 in (1037.3 mb)
Dewpoint 30°F (-1°C)
Visibility 5.00 mi
Last update 3 Mar 12:56 am EST
Extended Forecast for

Rossmoor MD

Winter Weather Advisory until March 3, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 3, 10:00am

    NOW until 10:00am Tue

    Winter Weather Advisory

  • Overnight

    Low: 29 °F

    Wintry Mix

  • Tuesday

    Tuesday: Rain or freezing rain before 3pm, then a chance of rain after 4pm. High near 43. South wind 3 to 7 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.

    High: 43 °F

    Rain/Freezing
    Rain then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Patchy fog between midnight and 1am. Temperature rising to around 49 by 5am. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F⇑

    Rain then
    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain. Patchy fog between 9am and 11am. Otherwise, cloudy, with a high near 58. Light and variable wind. Chance of precipitation is 50%.

    High: 58 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Rain likely. Cloudy, with a low around 48. Calm wind. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Overnight
A chance of snow and freezing rain before 3am, then snow and freezing rain, possibly mixed with sleet. Low around 29. East wind around 5 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of less than a 0.1 of an inch possible. Total nighttime snow and sleet accumulation of less than a half inch possible.
Tuesday
Rain or freezing rain before 3pm, then a chance of rain after 4pm. High near 43. South wind 3 to 7 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.
Tuesday Night
Rain, mainly before 11pm. Patchy fog between midnight and 1am. Temperature rising to around 49 by 5am. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain. Patchy fog between 9am and 11am. Otherwise, cloudy, with a high near 58. Light and variable wind. Chance of precipitation is 50%.
Wednesday Night
Rain likely. Cloudy, with a low around 48. Calm wind. Chance of precipitation is 70%.
Thursday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
A chance of showers after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rossmoor MD
 39.12°N 77.07°W (Elev. 479 ft)
Last Update:
12:54 am EST Mar 3, 2026
Forecast Valid:
1am EST Mar 3, 2026-6pm EDT Mar 9, 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