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

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

57°F

14°C

Humidity 36%
Wind Speed NW 14 G 23 mph
Barometer 30.14 in (1020.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 17 Apr 1:53 pm EDT
Extended Forecast for

Trenton, Mercer County Airport NJ

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. West wind around 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, mostly clear, with a low around 36. West wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Patchy frost before 8am. Otherwise, partly sunny, with a high near 70. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 70 °F

    Patchy Frost
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. South wind 10 to 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 82. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 61. West wind around 15 mph, with gusts as high as 25 mph.
Tonight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 36. West wind around 5 mph becoming calm in the evening.
Friday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 70. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 56. South wind 10 to 15 mph.
Saturday
Mostly cloudy, with a high near 82. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Mostly cloudy, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 63.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.28°N 74.83°W (Elev. 200 ft)
Last Update:
1:37 pm EDT Apr 17, 2025
Forecast Valid:
2pm EDT Apr 17, 2025-6pm EDT Apr 23, 2025
 
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Additional Resources

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Chance of Precipitation