National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Light Snow Fog/Mist

29°F

-2°C

Humidity 96%
Wind Speed N 3 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 28°F (-2°C)
Visibility 1.00 mi
Last update 18 Jan 6:53 am EST
Extended Forecast for

Yardley PA

Winter Weather Advisory until January 18, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 18, 08:00pm

    NOW until 8:00pm Sun

    Winter Weather Advisory

  • Today

    High: 34 °F

    Rain/Snow

  • Tonight

    Tonight: Snow likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 18. West wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Snow Likely
    then Mostly
    Clear

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Southwest wind 5 to 15 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 23. West wind 10 to 15 mph.

    High: 23 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Today
Rain and snow, becoming all snow after 4pm. High near 34. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Snow likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 18. West wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
M.L.King Day
Mostly sunny, with a high near 34. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 11. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 23. West wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 7.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 16.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yardley PA
 40.25°N 74.84°W (Elev. 69 ft)
Last Update:
4:11 am EST Jan 18, 2026
Forecast Valid:
7am EST Jan 18, 2026-6pm EST Jan 24, 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