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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

A Few Clouds

45°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.99 in (1017.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 22 Nov 5:56 pm EST
Extended Forecast for

2 Miles SSW Green Valley MD

  • Tonight

    Tonight: Partly cloudy, with a low around 33. North wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 30 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. West wind around 7 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. Calm wind becoming south around 5 mph after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 1pm. Cloudy, with a high near 53. Chance of precipitation is 60%.

    High: 53 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

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

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Partly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. North wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 57. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 34. West wind around 7 mph.
Monday
Sunny, with a high near 53. Northwest wind around 6 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 37. Calm wind becoming south around 5 mph after midnight.
Tuesday
Rain likely, mainly after 1pm. Cloudy, with a high near 53. Chance of precipitation is 60%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 36.
Thanksgiving Day
Mostly sunny, with a high near 44.
Thursday Night
Mostly clear, with a low around 27.
Friday
Mostly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Green Valley MD
 39.32°N 77.27°W (Elev. 551 ft)
Last Update:
3:53 pm EST Nov 22, 2025
Forecast Valid:
6pm EST Nov 22, 2025-6pm EST Nov 29, 2025
 
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Additional Resources

Radar & Satellite Image

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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