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

60°F

16°C

Humidity 44%
Wind Speed S 12 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 20 Mar 12:53 pm EDT
Extended Forecast for

Tullytown PA

  • This Afternoon

    This Afternoon: Sunny early, then becoming mostly cloudy, with a high near 65. South wind around 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 48. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 60. Northwest wind 5 to 10 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68. South wind 5 to 15 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny early, then becoming mostly cloudy, with a high near 65. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 48. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 60. Northwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 42. Calm wind.
Sunday
Partly sunny, with a high near 68. South wind 5 to 15 mph.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 57. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 57. Chance of precipitation is 30%.
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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:
4:09 am EDT Mar 20, 2026
Forecast Valid:
1pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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