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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

37°F

3°C

Humidity 93%
Wind Speed NE 7 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 35°F (2°C)
Visibility 3.00 mi
Wind Chill32°F (0°C)
Last update 19 Feb 2:53 am EST
Extended Forecast for

Tullytown PA

  • Overnight

    Overnight: A chance of light rain. Patchy fog. Otherwise, cloudy, with a low around 36. Northeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday

    Thursday: A chance of light rain, mainly after 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 45. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Periods of rain, mainly after 1am. Patchy fog between 1am and 4am. Low around 37. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain and
    Patchy Fog

  • Friday

    Friday: Periods of rain. High near 45. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 1pm. Cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.

    Low: 30 °F

    Chance Snow

Detailed Forecast

Overnight
A chance of light rain. Patchy fog. Otherwise, cloudy, with a low around 36. Northeast wind around 10 mph. Chance of precipitation is 30%.
Thursday
A chance of light rain, mainly after 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 45. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Periods of rain, mainly after 1am. Patchy fog between 1am and 4am. Low around 37. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Periods of rain. High near 45. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Snow likely, mainly after 1pm. Cloudy, with a high near 41. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Sunny, with a high near 40.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 46.
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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:
4:18 pm EST Feb 18, 2026
Forecast Valid:
3am EST Feb 19, 2026-6pm EST Feb 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation