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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

46°F

8°C

Humidity 68%
Wind Speed NW 3 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 19 Apr 7:53 pm EDT
Extended Forecast for

Newtown PA

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 31. North wind 5 to 10 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 56. North wind around 5 mph becoming southwest in the afternoon.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 43. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.
Monday
A slight chance of showers before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 31. North wind 5 to 10 mph.
Tuesday
Sunny, with a high near 56. North wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 43. South wind around 5 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 73.
Friday Night
A chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 62. 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:
4:11 pm EDT Apr 19, 2026
Forecast Valid:
8pm EDT Apr 19, 2026-6pm EDT Apr 26, 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