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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

41°F

5°C

Humidity 79%
Wind Speed SW 6 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Wind Chill37°F (3°C)
Last update 17 Feb 4:53 pm EST
Extended Forecast for

Tullytown PA

Dense Fog Advisory February 17, 10:00pm until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Widespread dense fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Dense Fog

  • Wednesday

    Wednesday: A chance of rain before 11am, then a chance of rain after 2pm. Widespread dense fog, mainly before 11am. Otherwise, cloudy, with a high near 47. Calm wind becoming south around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain
    and Dense Fog

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am. Patchy fog. Otherwise, mostly cloudy, with a low around 37. West wind around 5 mph becoming northeast after midnight. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 36. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Widespread dense fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Wednesday
A chance of rain before 11am, then a chance of rain after 2pm. Widespread dense fog, mainly before 11am. Otherwise, cloudy, with a high near 47. Calm wind becoming south around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of rain before 1am. Patchy fog. Otherwise, mostly cloudy, with a low around 37. West wind around 5 mph becoming northeast after midnight. Chance of precipitation is 20%.
Thursday
A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. East wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 36. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 50.
Saturday Night
A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then snow likely. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.12°N 74.83°W (Elev. 13 ft)
Last Update:
4:19 pm EST Feb 17, 2026
Forecast Valid:
4pm EST Feb 17, 2026-6pm EST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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