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.

Light Rain

50°F

10°C

Humidity NA
Wind Speed Calm
Barometer 29.85 in (1012.2 mb)
Dewpoint N/A
Visibility 2.00 mi
Last update 22 Nov 1:56 am EST
Extended Forecast for

Green Valley MD

  • Overnight

    Overnight: Rain. Low around 46. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 6 mph. Chance of precipitation is 40%.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. Light north wind.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. Calm wind becoming west 5 to 9 mph in the morning.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Northwest wind around 6 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Overnight
Rain. Low around 46. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 6 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 35. Light north wind.
Sunday
Mostly sunny, with a high near 56. Calm wind becoming west 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 34. Northwest wind around 6 mph.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
A chance of rain after 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Wednesday
A chance of rain before 1pm. Partly sunny, with a high near 61. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 38.
Thanksgiving Day
Mostly sunny, with a high near 47.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Valley MD
 39.33°N 77.24°W (Elev. 607 ft)
Last Update:
12:53 am EST Nov 22, 2025
Forecast Valid:
2am EST Nov 22, 2025-6pm EST Nov 28, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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