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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

29°F

-2°C

Humidity 66%
Wind Speed SW 6 mph
Barometer 30.11 in (1019.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 14 Feb 8:53 am EST
Extended Forecast for

Tullytown PA

  • Today

    Today: Sunny, with a high near 43. West wind around 5 mph.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 26. Calm wind.

    Low: 26 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain between 1pm and 4pm, then a chance of snow after 4pm. Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 30. East wind around 5 mph becoming calm. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 43. Northeast wind around 5 mph.

    High: 43 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 48. Chance of precipitation is 50%.

    High: 48 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 43. West wind around 5 mph.
Tonight
Increasing clouds, with a low around 26. Calm wind.
Sunday
A chance of rain between 1pm and 4pm, then a chance of snow after 4pm. Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 30. East wind around 5 mph becoming calm. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Washington's Birthday
Partly sunny, with a high near 43. Northeast wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Cloudy, with a high near 48. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.12°N 74.83°W (Elev. 13 ft)
Last Update:
4:15 am EST Feb 14, 2026
Forecast Valid:
9am EST Feb 14, 2026-6pm EST Feb 20, 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