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

Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Light Rain

59°F

15°C

Humidity 100%
Wind Speed N 9 mph
Barometer 30.17 in
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 22 Sep 6:15 am EDT
Extended Forecast for

Green Valley MD

  • Today

    Today: Showers. Patchy fog after 8am. High near 59. Northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers likely, mainly after 3am. Cloudy, with a low around 52. Northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 7am. Cloudy, with a high near 62. Northeast wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51. Northeast wind 7 to 9 mph.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61. Northeast wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 61 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Showers. Patchy fog after 8am. High near 59. Northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers likely, mainly after 3am. Cloudy, with a low around 52. Northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 7am. Cloudy, with a high near 62. Northeast wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 51. Northeast wind 7 to 9 mph.
Thursday
Partly sunny, with a high near 61. Northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Valley MD
 39.34°N 77.26°W (Elev. 548 ft)
Last Update:
4:53 am EDT Sep 22, 2026
Forecast Valid:
7am EDT Sep 22, 2026-6pm EDT Sep 28, 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