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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

16°F

-9°C

Humidity 54%
Wind Speed W 7 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 27 Jan 11:53 pm EST
Extended Forecast for

Tullytown PA

Cold Weather Advisory January 28, 12:50am until January 28, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 28, 12:50am until January 28, 10:00am

    NOW until 10:00am Wed

    Cold Weather Advisory

  • Overnight

    Low: 3 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 20. Wind chill values as low as -9. West wind around 5 mph.

    High: 20 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 3. Wind chill values as low as -8. Calm wind becoming west around 5 mph.

    Low: 3 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 19. Wind chill values as low as -9. West wind 5 to 10 mph.

    High: 19 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 1. West wind around 5 mph.

    Low: 1 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 19.

    High: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 3. Wind chill values as low as -7. West wind 5 to 10 mph.
Wednesday
Increasing clouds, with a high near 20. Wind chill values as low as -9. West wind around 5 mph.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 3. Wind chill values as low as -8. Calm wind becoming west around 5 mph.
Thursday
Sunny, with a high near 19. Wind chill values as low as -9. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 1. West wind around 5 mph.
Friday
Mostly sunny, with a high near 18.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Mostly cloudy, with a high near 19.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Sunday
A chance of snow. Cloudy, with a high near 25. Blustery. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Partly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 30.
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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:
12:42 am EST Jan 28, 2026
Forecast Valid:
12am EST Jan 28, 2026-6pm EST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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