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.

Fog/Mist

45°F

7°C

Humidity 90%
Wind Speed E 14 mph
Barometer 30.35 in (1027.2 mb)
Dewpoint 42°F (6°C)
Visibility 4.00 mi
Wind Chill39°F (4°C)
Last update 2 Apr 7:53 am EDT
Extended Forecast for

Tullytown PA

  • Today

    Today: A slight chance of showers between 9am and 10am. Cloudy, with a high near 49. East wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers between 11pm and midnight. Patchy fog after 3am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 75 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 72. Chance of precipitation is 90%.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 9am and 10am. Cloudy, with a high near 49. East wind 10 to 15 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers between 11pm and midnight. Patchy fog after 3am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, mainly after 8am. High near 72. Chance of precipitation is 90%.
Sunday Night
Showers likely before 8pm. Partly cloudy, with a low around 41. Chance of precipitation is 60%.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.12°N 74.83°W (Elev. 13 ft)
Last Update:
4:11 am EDT Apr 2, 2026
Forecast Valid:
8am EDT Apr 2, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation