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

44°F

7°C

Humidity 89%
Wind Speed SW 3 mph
Barometer 30.25 in (1024.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 4 Mar 8:53 pm EST
Extended Forecast for

Washington Crossing PA

  • Tonight

    Tonight: A slight chance of rain before 1am, then a chance of rain after 3am. Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Rain, mainly before 3pm. Areas of fog before 1pm. High near 47. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Rain, mainly after 7pm. Low around 37. Northeast wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Friday

    Friday: A slight chance of showers before 1pm. Cloudy, with a high near 45. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after 1am. Cloudy, with a low around 38. East wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before 1am, then a chance of rain after 3am. Patchy fog. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 3pm. Areas of fog before 1pm. High near 47. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly after 7pm. Low around 37. Northeast wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers before 1pm. Cloudy, with a high near 45. Northeast wind around 5 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly after 1am. Cloudy, with a low around 38. East wind around 5 mph becoming calm. Chance of precipitation is 40%.
Saturday
A slight chance of showers after 1pm. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
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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 EST Mar 4, 2026
Forecast Valid:
9pm EST Mar 4, 2026-6pm EDT Mar 11, 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