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.

Fair

70°F

21°C

Humidity 49%
Wind Speed S 13 mph
Barometer 29.69 in (1004.7 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 26 Mar 7:53 pm EDT
Extended Forecast for

Tullytown PA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 53. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Periods of rain, mainly before 10am. Temperature falling to around 51 by 11am. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F⇓

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 31. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 45. Northwest wind 10 to 15 mph.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 53. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Periods of rain, mainly before 10am. Temperature falling to around 51 by 11am. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 31. North wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 45. Northwest wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 28. Calm wind.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 64.
Monday Night
A chance of rain after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Tuesday
A chance of rain. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 73. Chance of precipitation is 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:
4:10 pm EDT Mar 26, 2026
Forecast Valid:
8pm EDT Mar 26, 2026-6pm EDT Apr 2, 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