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.

Fair

51°F

11°C

Humidity 59%
Wind Speed W 5 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 11 Nov 12:53 am EST
Extended Forecast for

Fairless Hills PA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, clear, with a low around 39. West wind around 5 mph.

    Low: 39 °F

    Patchy Fog

  • Veterans Day

    Veterans Day: Patchy fog before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming southwest around 5 mph.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47. Calm wind becoming east around 5 mph after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain, mainly after 9am. High near 63. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 41. Northwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, clear, with a low around 39. West wind around 5 mph.
Veterans Day
Patchy fog before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 47. Calm wind becoming east around 5 mph after midnight.
Thursday
Rain, mainly after 9am. High near 63. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 41. Northwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairless Hills PA
 40.17°N 74.85°W (Elev. 98 ft)
Last Update:
1:23 am EST Nov 11, 2026
Forecast Valid:
1am EST Nov 11, 2026-6pm EST Nov 17, 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