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

28°F

-2°C

Humidity 47%
Wind Speed SW 10 mph
Barometer 30.03 in (1016.5 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 16 Jan 5:53 pm EST
Extended Forecast for

Washington Crossing PA

  • Tonight

    Tonight: A chance of snow, mainly after 3am. Increasing clouds, with a low around 27. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 27 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow, possibly mixing with rain after 1pm, then gradually ending. High near 39. Southwest wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. West wind around 5 mph.

    Low: 19 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 20.

    High: 20 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of snow, mainly after 3am. Increasing clouds, with a low around 27. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow, possibly mixing with rain after 1pm, then gradually ending. High near 39. Southwest wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Sunday
A chance of snow. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday Night
Partly cloudy, with a low around 19. West wind around 5 mph.
M.L.King Day
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 20.
Tuesday Night
Mostly clear, with a low around 9.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 40.
Thursday Night
Partly cloudy, with a low around 19.
Friday
A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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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:
4:12 pm EST Jan 16, 2026
Forecast Valid:
6pm EST Jan 16, 2026-6pm EST Jan 23, 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