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

45°F

7°C

Humidity 46%
Wind Speed NW 12 mph
Barometer 30.06 in (1017.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 27 Mar 5:53 pm EDT
Extended Forecast for

Tullytown PA

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 30. North wind 5 to 10 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 46. North wind 10 to 15 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 56. Light south wind becoming southwest 10 to 15 mph in the morning.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain before 8am. Partly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Chance Rain
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 30. North wind 5 to 10 mph.
Saturday
Sunny, with a high near 46. North wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 56. Light south wind becoming southwest 10 to 15 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 43. South wind 5 to 10 mph.
Monday
Partly sunny, with a high near 63.
Monday Night
A chance of rain after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Tuesday
A chance of rain before 8am. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
A chance of rain after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
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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 27, 2026
Forecast Valid:
6pm EDT Mar 27, 2026-6pm EDT Apr 3, 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