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.

Overcast

49°F

9°C

Humidity 71%
Wind Speed SW 8 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 26 Mar 4:53 am EDT
Extended Forecast for

Newtown PA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 10 to 15 mph.

    High: 74 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Showers, mainly after 1am. Low around 51. Southwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly before noon. Temperature falling to around 51 by 1pm. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F⇓

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 31. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 45. Northwest wind around 15 mph.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 10 to 15 mph.
Tonight
Showers, mainly after 1am. Low around 51. Southwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, mainly before noon. Temperature falling to around 51 by 1pm. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 31. North wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 45. Northwest wind around 15 mph.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 62.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 65. Chance of precipitation is 30%.
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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:
4:10 am EDT Mar 26, 2026
Forecast Valid:
5am EDT Mar 26, 2026-6pm EDT Apr 1, 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