Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

A Few Clouds

18°F

-8°C

Humidity 41%
Wind Speed NW 8 G 17 mph
Barometer 30.16 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 29 Jan 12:35 pm EST
Extended Forecast for

2 Miles E Jarrettsville MD

Cold Weather Advisory January 29, 07:00pm until January 30, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 18. West wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 18 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 2. Wind chill values as low as -8. Northwest wind 6 to 8 mph.

    Low: 2 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 17. Wind chill values as low as -9. Northwest wind 6 to 8 mph.

    High: 17 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 3. Wind chill values as low as -9. Northwest wind 3 to 6 mph.

    Low: 3 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 17. North wind 7 to 10 mph.

    High: 17 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow, mainly after 1am.  Mostly cloudy, with a low around 8. Chance of precipitation is 30%.

    Low: 8 °F

    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 23. Blustery.

    High: 23 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Blustery.

    Low: 13 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 18. West wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 2. Wind chill values as low as -8. Northwest wind 6 to 8 mph.
Friday
Sunny, with a high near 17. Wind chill values as low as -9. Northwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 3. Wind chill values as low as -9. Northwest wind 3 to 6 mph.
Saturday
Mostly cloudy, with a high near 17. North wind 7 to 10 mph.
Saturday Night
A chance of snow, mainly after 1am. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 23. Blustery.
Sunday Night
Partly cloudy, with a low around 13. Blustery.
Monday
Sunny, with a high near 29.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Jarrettsville MD
 39.61°N 76.44°W (Elev. 499 ft)
9:54 am EST Jan 29, 2026
12pm EST Jan 29, 2026-6pm EST Feb 4, 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