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

45°F

7°C

Humidity 66%
Wind Speed S 6 mph
Barometer 30.09 in (1018.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 20 Mar 9:53 am EDT
Extended Forecast for

3 Miles SE Sergeantsville NJ

  • Today

    Today: Partly sunny, with a high near 63. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 45. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 57. North wind around 5 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers after 2pm. Partly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 63. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 45. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 57. North wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 39. Calm wind.
Sunday
A slight chance of showers after 2pm. Partly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 55. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 56. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Sergeantsville NJ
 40.42°N 74.92°W (Elev. 200 ft)
Last Update:
4:09 am EDT Mar 20, 2026
Forecast Valid:
10am EDT Mar 20, 2026-6pm EDT Mar 26, 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