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

Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

9°F

-13°C

Humidity 62%
Wind Speed NW 8 mph
Barometer 30.07 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 29 Jan 2:35 am EST
Extended Forecast for

4 Miles NNW Pomeroy PA

Cold Weather Advisory January 29, 02:55am until January 30, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 29, 02:55am until January 30, 10:00am

    NOW until 10:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: -2 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 17. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 17 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -2. Wind chill values as low as -14. West wind 5 to 10 mph.

    Low: -2 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 15. Wind chill values as low as -15. Northwest wind 5 to 15 mph.

    High: 15 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3. West wind around 5 mph.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm. Partly sunny, with a high near 17. Chance of precipitation is 20%.

    High: 17 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

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

    Low: 8 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow before 1pm. Partly sunny, with a high near 21. Blustery. Chance of precipitation is 30%.

    High: 21 °F

    Chance Snow
    and Blustery

Detailed Forecast

Overnight
Mostly clear, with a low around -2. Wind chill values as low as -13. West wind around 5 mph.
Thursday
Increasing clouds, with a high near 17. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around -2. Wind chill values as low as -14. West wind 5 to 10 mph.
Friday
Sunny, with a high near 15. Wind chill values as low as -15. Northwest wind 5 to 15 mph.
Friday Night
Partly cloudy, with a low around -3. West wind around 5 mph.
Saturday
A slight chance of snow after 1pm. Partly sunny, with a high near 17. Chance of precipitation is 20%.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Sunday
A chance of snow before 1pm. Partly sunny, with a high near 21. Blustery. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 12. Blustery.
Monday
Sunny, with a high near 28. Blustery.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Pomeroy PA
 40.02°N 75.96°W (Elev. 495 ft)
Last Update:
4:11 pm EST Jan 28, 2026
Forecast Valid:
2am EST Jan 29, 2026-6pm EST Feb 4, 2026
 
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