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

41°F

5°C

Humidity 55%
Wind Speed Vrbl 6 mph
Barometer 30.10 in (1018.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 27 Feb 12:53 pm EST
Extended Forecast for

Newtown PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 46. Calm wind.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming southwest around 5 mph.

    High: 52 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. Calm wind becoming northeast around 5 mph after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow showers before 10am, then a chance of rain showers between 10am and 1pm. Mostly cloudy, with a high near 42. East wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 46. Calm wind.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 27. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming southwest around 5 mph.
Saturday Night
Mostly cloudy, with a low around 31. Calm wind becoming northeast around 5 mph after midnight.
Sunday
A chance of snow showers before 10am, then a chance of rain showers between 10am and 1pm. Mostly cloudy, with a high near 42. East wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 32.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.
Tuesday Night
Rain. Low around 36. Chance of precipitation is 80%.
Wednesday
A chance of rain. Cloudy, with a high near 50. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Cloudy, with a low around 36. Chance of precipitation is 40%.
Thursday
A chance of rain. Cloudy, with a high near 55. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown PA
 40.22°N 74.96°W (Elev. 98 ft)
Last Update:
1:31 pm EST Feb 27, 2026
Forecast Valid:
1pm EST Feb 27, 2026-6pm EST Mar 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation