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

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

3 Miles S Unionville MD

  • Overnight

    Overnight: Clear, with a low around 41. West wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 41 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. Northwest wind around 10 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 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely

Detailed Forecast

Overnight
Clear, with a low around 41. West wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 59. West wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 39. Light and variable wind.
Wednesday
Mostly sunny, with a high near 66. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 43. Northwest wind around 10 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 60.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
A chance of rain. Partly sunny, with a high near 59. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Unionville MD
 39.48°N 77.12°W (Elev. 650 ft)
Last Update:
9:29 pm EST Nov 3, 2025
Forecast Valid:
12am 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