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

44°F

7°C

Humidity 68%
Wind Speed Calm
Barometer 30.18 in (1021.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 8 Jan 8:53 am EST
Extended Forecast for

Washington Crossing PA

  • Today

    Today: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 31. Calm wind.

    Low: 31 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of rain after 1pm. Mostly cloudy, with a high near 55. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Cloudy, with a low around 46. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 53. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 42. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 49. Calm wind.
Tonight
Increasing clouds, with a low around 31. Calm wind.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 55. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly before 1am. Cloudy, with a low around 46. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 53. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain, mainly before 1am. Low around 42. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A chance of rain before 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington Crossing PA
 40.3°N 74.86°W (Elev. 141 ft)
Last Update:
4:11 am EST Jan 8, 2026
Forecast Valid:
9am EST Jan 8, 2026-6pm EST Jan 14, 2026
 
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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