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

49°F

9°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.81 in (1008.8 mb)
Dewpoint 49°F (9°C)
Visibility 0.25 mi
Wind Chill47°F (8°C)
Last update 8 Mar 2:53 am EDT
Extended Forecast for

Tullytown PA

Dense Fog Advisory until March 8, 07:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 8, 07:00am

    NOW until 7:00am Sun

    Dense Fog Advisory

  • Overnight

    Low: 49 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers between 9am and noon. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. South wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 49. Southwest wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers between 9am and noon. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 45. South wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Mostly cloudy, with a high near 73.
Wednesday Night
A chance of showers after 2am. Cloudy, with a low around 61. Chance of precipitation is 50%.
Thursday
Rain showers likely before 2pm, then a chance of rain and snow showers. Cloudy, with a high near 61. Breezy. Chance of precipitation is 70%.
Thursday Night
A chance of rain and snow showers. Partly cloudy, with a low around 31. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 50.
Friday Night
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.12°N 74.83°W (Elev. 13 ft)
Last Update:
1:50 am EST Mar 8, 2026
Forecast Valid:
3am EDT Mar 8, 2026-6pm EDT Mar 14, 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