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.

A Few Clouds

34°F

1°C

Humidity 44%
Wind Speed W 18 G 32 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 17 Mar 10:53 am EDT
Extended Forecast for

Newtown PA

  • Today

    Today: Scattered flurries after 2pm. Partly sunny, with a high near 40. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    High: 40 °F

    Scattered
    Flurries and
    Breezy

  • Tonight

    Tonight: Scattered flurries before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 24. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Scattered
    Flurries

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 41 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. South wind around 5 mph becoming calm.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 51. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: A chance of rain before 8am. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.

    High: 55 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Today
Scattered flurries after 2pm. Partly sunny, with a high near 40. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Tonight
Scattered flurries before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 24. West wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Partly cloudy, with a low around 27. South wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 51. Light southeast wind becoming south 5 to 10 mph in the morning.
Thursday Night
A chance of rain after 2am. Cloudy, with a low around 34. Chance of precipitation is 30%.
Friday
A chance of rain before 8am. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 56.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 58.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown PA
 40.22°N 74.93°W (Elev. 164 ft)
Last Update:
11:48 am EDT Mar 17, 2026
Forecast Valid:
11am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation