Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

39°F

4°C

Humidity 89%
Wind Speed N 3 mph
Barometer 30.51 in (1032.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 19 Oct 12:53 am EDT
Extended Forecast for

Yardley PA

Frost Advisory October 19, 01:00am until October 19, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Overnight

    Overnight: Areas of frost after 5am.  Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Areas Frost

  • Monday

    Monday: Areas of frost before 7am.  Otherwise, mostly sunny, with a high near 66. Northeast wind around 5 mph.

    High: 66 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. North wind around 5 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. North wind around 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. North wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of frost after 5am. Otherwise, clear, with a low around 35. Calm wind.
Monday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 66. Northeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 45. North wind around 5 mph.
Tuesday
Mostly sunny, with a high near 68. North wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 43. North wind 5 to 10 mph.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Yardley PA
 40.25°N 74.84°W (Elev. 69 ft)
4:08 pm EDT Oct 18, 2026
12am EDT Oct 19, 2026-6pm EDT Oct 25, 2026
 
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Additional Resources

Radar & Satellite Image

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