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

68°F

20°C

Humidity 61%
Wind Speed SW 12 G 30 mph
Barometer 29.69 in (1004.5 mb)
Dewpoint 54°F (12°C)
Visibility 8.00 mi
Last update 26 Mar 11:53 pm EDT
Extended Forecast for

Washington Crossing PA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 51. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers

  • Friday

    Friday: Periods of rain, mainly before 9am. Temperature falling to around 50 by 11am. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F⇓

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Sunny, with a high near 44. Northwest wind 10 to 15 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly 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 48. Chance of precipitation is 30%.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 51. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Periods of rain, mainly before 9am. Temperature falling to around 50 by 11am. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. North wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 44. Northwest wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 26. Calm wind.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 63.
Monday Night
A chance of rain after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Tuesday
A chance of rain. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washington Crossing PA
 40.3°N 74.86°W (Elev. 141 ft)
Last Update:
4:10 pm EDT Mar 26, 2026
Forecast Valid:
12am EDT Mar 27, 2026-6pm EDT Apr 2, 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