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

Atmospheric River in the West; Strong Winds in the Northeast

A strong atmospheric river will continue moderate to heavy rainfall with possible flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. today into Thursday. Additional impacts are likely into Friday with a cold front. A fast-moving storm system will cross the Northeast U.S. today into Thursday with gusty to high winds and areas of rain and high elevation snow showers. Read More >

Hazardous Weather Conditions

Current conditions at

Clarksville 4 NNE (001MD)

Lat: 39.26°NLon: 76.93°WElev: 361ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles S Unionville MD

  • Tonight

    Tonight: Mostly cloudy, then gradual clearing toward daybreak, with a low around 41. Northwest wind 14 to 17 mph, with gusts as high as 41 mph.

    Low: 41 °F

    Clearing Late

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 60. South wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 51. South wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 1am. Partly cloudy, with a low around 47. Chance of precipitation is 30%.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Partly sunny, with a high near 62. Chance of precipitation is 50%.

    High: 62 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradual clearing toward daybreak, with a low around 41. Northwest wind 14 to 17 mph, with gusts as high as 41 mph.
Thursday
Sunny, with a high near 54. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 36. Calm wind.
Friday
Partly sunny, with a high near 60. South wind 6 to 15 mph, with gusts as high as 24 mph.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 51. South wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A chance of rain after 1am. Partly cloudy, with a low around 47. Chance of precipitation is 30%.
Sunday
A chance of rain. Partly sunny, with a high near 62. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 28.
Veterans Day
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Unionville MD
 39.45°N 77.1°W (Elev. 705 ft)
Last Update:
3:29 pm EST Nov 5, 2025
Forecast Valid:
6pm EST Nov 5, 2025-6pm EST Nov 12, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation