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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

13°F

-11°C

Humidity 54%
Wind Speed W 3 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 28 Jan 8:53 pm EST
Extended Forecast for

Tullytown PA

Cold Weather Advisory January 28, 09:38pm until January 29, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 28, 09:38pm until January 29, 10:00am

    NOW until 10:00am Thu

    Cold Weather Advisory

  • Tonight

    Low: 1 °F

    Scattered
    Flurries

  • Thursday

    Thursday: Sunny, with a high near 20. Wind chill values as low as -9. West wind 5 to 10 mph.

    High: 20 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 1. Wind chill values as low as -9. West wind around 5 mph.

    Low: 1 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 17. Wind chill values as low as -10. West wind 5 to 10 mph.

    High: 17 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -1. Northwest wind around 5 mph.

    Low: -1 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow after 1pm. Partly sunny, with a high near 19. Chance of precipitation is 20%.

    High: 19 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.

    Low: 12 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.

    High: 23 °F

    Chance Snow

Detailed Forecast

Tonight
Scattered flurries before 10pm. Partly cloudy, with a low around 1. Wind chill values as low as -8. West wind around 5 mph.
Thursday
Sunny, with a high near 20. Wind chill values as low as -9. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 1. Wind chill values as low as -9. West wind around 5 mph.
Friday
Sunny, with a high near 17. Wind chill values as low as -10. West wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around -1. Northwest wind around 5 mph.
Saturday
A slight chance of snow after 1pm. Partly sunny, with a high near 19. Chance of precipitation is 20%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 13.
Wednesday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.14°N 74.83°W (Elev. 39 ft)
Last Update:
4:11 pm EST Jan 28, 2026
Forecast Valid:
9pm EST Jan 28, 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