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

Coastal and Marine Hazards This Week

Coastal flooding, dangerous rip currents, high surf, and hazardous marine conditions are expected through this week. View this briefing for more details. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

55°F

13°C

Humidity 67%
Wind Speed NE 12 mph
Barometer 30.35 in (1027.0 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 23 Sep 4:53 am EDT
Extended Forecast for

Newtown PA

Coastal Flood Advisory September 23, 10:00pm until September 25, 04:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • Today

    Today: Mostly cloudy, with a high near 67. Breezy, with a northeast wind 15 to 20 mph.

    High: 67 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Northeast wind around 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. North wind 10 to 15 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 68. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 67. Breezy, with a northeast wind 15 to 20 mph.
Tonight
Partly cloudy, with a low around 50. Northeast wind around 15 mph.
Thursday
Mostly sunny, with a high near 66. Northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 51. North wind 10 to 15 mph.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 68. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Sunday
A chance of showers before 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown PA
 40.24°N 74.93°W (Elev. 282 ft)
Last Update:
4:09 am EDT Sep 23, 2026
Forecast Valid:
5am EDT Sep 23, 2026-6pm EDT Sep 29, 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