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

Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

51°F

11°C

Humidity 50%
Wind Speed NW 9 G 18 mph
Barometer 30.12 in (1021.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 4 Nov 1:56 am EST
Extended Forecast for

Green Valley MD

  • Overnight

    Overnight: Clear, with a low around 41. West wind around 10 mph.

    Low: 41 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. Northwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Overnight
Clear, with a low around 41. West wind around 10 mph.
Tuesday
Sunny, with a high near 59. West wind 7 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 67. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 43. Northwest wind around 11 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 60.
Friday Night
Rain likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
A chance of rain. Partly sunny, with a high near 61. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Valley MD
 39.33°N 77.24°W (Elev. 607 ft)
Last Update:
12:29 am EST Nov 4, 2025
Forecast Valid:
2am EST Nov 4, 2025-6pm EST Nov 10, 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