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.

Light Rain Fog/Mist

55°F

13°C

Humidity 100%
Wind Speed SW 3 mph
Barometer 29.82 in (1009.3 mb)
Dewpoint 55°F (13°C)
Visibility 5.00 mi
Last update 5 Apr 1:53 pm EDT
Extended Forecast for

Tullytown PA

  • This Afternoon

    This Afternoon: Showers, mainly before 4pm. Steady temperature around 61. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Showers

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 40. West wind around 10 mph.

    Low: 40 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 57. West wind 10 to 15 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 40. West wind around 5 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 52. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers, mainly before 4pm. Steady temperature around 61. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 40. West wind around 10 mph.
Monday
Sunny, with a high near 57. West wind 10 to 15 mph.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 40. West wind around 5 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 52. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 74.
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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:
5:48 am EDT Apr 5, 2026
Forecast Valid:
2pm EDT Apr 5, 2026-6pm EDT Apr 11, 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