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.

Overcast

35°F

2°C

Humidity 85%
Wind Speed NE 10 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 19 Feb 9:53 pm EST
Extended Forecast for

Tullytown PA

  • Tonight

    Tonight: A chance of rain before 1am, then a chance of rain after 3am. Cloudy, with a low around 37. Northeast wind around 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: Rain, mainly before 2pm. Patchy fog. High near 46. East wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain and
    Patchy Fog
    then Rain
    Likely and
    Patchy Fog

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 36. Calm wind becoming west around 5 mph after midnight.

    Low: 36 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 49. West wind around 5 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 33. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain. High near 38. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Cloudy, with a low around 30. Chance of precipitation is 70%.

    Low: 30 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain before 1am, then a chance of rain after 3am. Cloudy, with a low around 37. Northeast wind around 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly before 2pm. Patchy fog. High near 46. East wind around 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 36. Calm wind becoming west around 5 mph after midnight.
Saturday
Partly sunny, with a high near 49. West wind around 5 mph.
Saturday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 33. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow, possibly mixed with rain. High near 38. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Snow likely, mainly before 1am. Cloudy, with a low around 30. Chance of precipitation is 70%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 49. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tullytown PA
 40.14°N 74.83°W (Elev. 39 ft)
Last Update:
4:16 pm EST Feb 19, 2026
Forecast Valid:
10pm EST Feb 19, 2026-6pm EST Feb 26, 2026
 
Forecast Discussion
 
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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