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

72°F

22°C

Humidity 66%
Wind Speed W 3 mph
Barometer 29.92 in (1012.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Apr 12:53 am EDT
Extended Forecast for

Tullytown PA

  • Overnight

    Overnight: Partly cloudy, with a low around 65. Southwest wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 92. Southwest wind 5 to 15 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am. Increasing clouds, with a low around 68. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 65. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 92. Southwest wind 5 to 15 mph.
Wednesday Night
A slight chance of showers before 2am. Increasing clouds, with a low around 68. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 58.
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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:
6:17 pm EDT Apr 14, 2026
Forecast Valid:
12am EDT Apr 15, 2026-6pm EDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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