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

46°F

8°C

Humidity 68%
Wind Speed W 6 mph
Barometer 29.95 in (1013.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 7 Jan 7:53 pm EST
Extended Forecast for

Newtown Grant PA

  • Tonight

    Tonight: Mostly clear, with a low around 32. West wind around 5 mph.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 48. Northwest wind around 5 mph becoming calm.

    High: 48 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 32. Calm wind.

    Low: 32 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of rain after 1pm. Mostly cloudy, with a high near 54. South wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely. Cloudy, with a low around 48. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 59. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 32. West wind around 5 mph.
Thursday
Sunny, with a high near 48. Northwest wind around 5 mph becoming calm.
Thursday Night
Increasing clouds, with a low around 32. Calm wind.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 54. South wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
Rain likely. Cloudy, with a low around 48. Southwest wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 59. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain, mainly before 1am. Low around 42. Chance of precipitation is 80%.
Sunday
A chance of rain before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown Grant PA
 40.25°N 74.95°W (Elev. 295 ft)
Last Update:
4:12 pm EST Jan 7, 2026
Forecast Valid:
8pm EST Jan 7, 2026-6pm EST Jan 14, 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