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

35°F

2°C

Humidity 93%
Wind Speed W 5 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 12 Mar 6:53 pm EDT
Extended Forecast for

Newtown Grant PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 28. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 49. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 49 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 51. West wind around 15 mph, with gusts as high as 30 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. West wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 46. Chance of precipitation is 90%.

    Low: 46 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 64. Breezy. Chance of precipitation is 100%.

    High: 64 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain likely, mainly before 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.

    Low: 32 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 28. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Increasing clouds, with a high near 49. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 37. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 51. West wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 33. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 53.
Sunday Night
Rain, mainly after 2am. Low around 46. Chance of precipitation is 90%.
Monday
Rain. High near 64. Breezy. Chance of precipitation is 100%.
Monday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.
Tuesday
A chance of rain before 8am. Mostly sunny, with a high near 40. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown Grant PA
 40.27°N 74.95°W (Elev. 302 ft)
Last Update:
4:11 pm EDT Mar 12, 2026
Forecast Valid:
7pm EDT Mar 12, 2026-6pm EDT Mar 19, 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