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

Wintry precipitation expected Friday afternoon into Saturday morning

A storm system will bring accumulating snow, sleet, and freezing rain that can lead to holiday travel disruptions. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

35°F

2°C

Humidity 61%
Wind Speed Vrbl 6 mph
Barometer 30.29 in (1025.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 24 Dec 6:53 pm EST
Extended Forecast for

Newtown PA

Winter Storm Watch December 26, 01:00pm until December 27, 10:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Mostly cloudy, with a high near 46. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 46 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Mostly cloudy, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 30 °F

    Mostly Cloudy
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 26 °F

    Heavy Snow

  • Saturday

    Saturday: Snow likely, mainly before 1pm. Cloudy, with a high near 34. Chance of precipitation is 60%.

    High: 34 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.
Christmas Day
Mostly cloudy, with a high near 46. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 21. North wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Snow likely after 1pm. Mostly cloudy, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday Night
Snow. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
Snow likely, mainly before 1pm. Cloudy, with a high near 34. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A chance of rain after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%.
Sunday Night
Rain. Low around 32. Chance of precipitation is 80%.
Monday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown PA
 40.22°N 74.93°W (Elev. 164 ft)
Last Update:
4:11 pm EST Dec 24, 2025
Forecast Valid:
7pm EST Dec 24, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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