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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Newtown Grant PA

Dense Fog Advisory until March 10, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 10, 10:00am

    NOW until 10:00am Tue

    Dense Fog Advisory

  • Overnight

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy dense fog before 9am. Otherwise, sunny, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 77 °F

    Patchy Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. South wind around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers after 2pm. Increasing clouds, with a high near 75. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 55. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of rain showers before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Breezy.
    Chance
    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow showers before 8pm. Partly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 43. Southwest wind around 5 mph.
Tuesday
Patchy dense fog before 9am. Otherwise, sunny, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. South wind around 5 mph.
Wednesday
A chance of showers after 2pm. Increasing clouds, with a high near 75. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 55. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of rain showers before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of snow showers before 8pm. Partly cloudy, with a low around 30. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 48.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Cloudy, with a high near 58.
Sunday Night
Rain. Low around 45. Chance of precipitation is 90%.
Monday
Rain. High near 56. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newtown Grant PA
 40.27°N 74.98°W (Elev. 308 ft)
Last Update:
3:06 am EDT Mar 10, 2026
Forecast Valid:
3am EDT Mar 10, 2026-6pm EDT Mar 16, 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