Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

17°F

-8°C

Humidity 56%
Wind Speed N 12 mph
Barometer 30.08 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 31 Jan 2:55 pm EST
Extended Forecast for

Jarrettsville MD

Cold Weather Advisory January 31, 10:00pm until February 1, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 7. Wind chill values as low as -10. North wind 8 to 17 mph, with gusts as high as 29 mph.

    Low: 7 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 22. Wind chill values as low as -10. Blustery, with a north wind 18 to 21 mph, with gusts as high as 36 mph.

    High: 22 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12. Wind chill values as low as -3. Northwest wind around 16 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values as low as -3. Northwest wind 10 to 14 mph, with gusts as high as 29 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Northwest wind around 7 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 7. Wind chill values as low as -10. North wind 8 to 17 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 22. Wind chill values as low as -10. Blustery, with a north wind 18 to 21 mph, with gusts as high as 36 mph.
Sunday Night
Mostly clear, with a low around 12. Wind chill values as low as -3. Northwest wind around 16 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 29. Wind chill values as low as -3. Northwest wind 10 to 14 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 13. Northwest wind around 7 mph.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 11.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Mostly sunny, with a high near 21.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Jarrettsville MD
 39.61°N 76.47°W (Elev. 574 ft)
12:52 pm EST Jan 31, 2026
3pm EST Jan 31, 2026-6pm EST Feb 7, 2026
 
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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