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.

Fog

36°F

2°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.66 in (1003.7 mb)
Dewpoint 36°F (2°C)
Visibility 0.25 mi
Last update 7 Jan 12:53 am EST
Extended Forecast for

Levittown PA

Dense Fog Advisory until January 7, 08:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until January 7, 08:00am

    NOW until 8:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 36 °F

    Chance Rain
    and Fog

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 51. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 51 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 33. West wind 5 to 10 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 50. West wind around 5 mph becoming calm.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Showers

Detailed Forecast

Overnight
A chance of rain, mainly before 4am. Widespread fog. Otherwise, cloudy, with a low around 36. Calm wind becoming west around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 51. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 33. West wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 50. West wind around 5 mph becoming calm.
Thursday Night
Mostly cloudy, with a low around 35. Calm wind.
Friday
Showers likely, mainly after 1pm. Cloudy, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Showers. High near 57. Chance of precipitation is 90%.
Saturday Night
Showers likely, mainly before 1am. Cloudy, with a low around 41. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Levittown PA
 40.14°N 74.83°W (Elev. 39 ft)
Last Update:
12:23 am EST Jan 7, 2026
Forecast Valid:
1am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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