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.

Fair

19°F

-7°C

Humidity 40%
Wind Speed W 16 mph
Barometer 30.15 in
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 29 Jan 2:15 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 19. West wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 19 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 1. Wind chill values as low as -9. West wind around 7 mph.

    Low: 1 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 17. Wind chill values as low as -10. Northwest wind 6 to 8 mph.

    High: 17 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -9. Northwest wind 3 to 6 mph.

    Low: 2 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm.  Mostly cloudy, with a high near 18. North wind 7 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 18 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A slight chance of snow.  Mostly cloudy, with a low around 8. Chance of precipitation is 20%.

    Low: 8 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Partly sunny, with a high near 22. Blustery.

    High: 22 °F

    Partly Sunny
    and Blustery

  • Sunday Night

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

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 19. West wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 1. Wind chill values as low as -9. West wind around 7 mph.
Friday
Sunny, with a high near 17. Wind chill values as low as -10. Northwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -9. Northwest wind 3 to 6 mph.
Saturday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 18. North wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 22. Blustery.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

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