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

44°F

7°C

Humidity 89%
Wind Speed E 16 mph
Barometer 30.41 in (1029.1 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 2 Apr 10:53 am EDT
Extended Forecast for

Fairless Hills PA

  • Today

    Today: Mostly cloudy, with a high near 49. East wind around 15 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers between 11pm and midnight. Patchy fog after 4am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. East wind 5 to 15 mph becoming southwest in the afternoon.

    High: 74 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 70. Chance of precipitation is 90%.

    High: 70 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. East wind around 15 mph.
Tonight
A slight chance of showers between 11pm and midnight. Patchy fog after 4am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. East wind 5 to 15 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. West wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Sunday
Showers, mainly after 8am. High near 70. Chance of precipitation is 90%.
Sunday Night
Showers likely before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 60%.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 31.
Wednesday
Sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairless Hills PA
 40.19°N 74.88°W (Elev. 190 ft)
Last Update:
4:11 am EDT Apr 2, 2026
Forecast Valid:
10am EDT Apr 2, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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