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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

72°F

22°C

Humidity 82%
Wind Speed SW 9 mph
Barometer 29.69 in (1004.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 16 Oct 3:53 pm EDT
Extended Forecast for

2 Miles WSW Trenton, Mercer County Airport NJ

Severe T-storm Watch until October 16, 10:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until October 16, 10:00pm

    NOW until 10:00pm Fri

    Severe T-storm Watch

  • This Afternoon

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 9pm, then a chance of showers. Some of the storms could be severe. Low around 45. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Breezy, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 54 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. North wind around 5 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Northeast wind 5 to 10 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 80. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 9pm, then a chance of showers. Some of the storms could be severe. Low around 45. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Breezy, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 34. North wind around 5 mph.
Sunday
Sunny, with a high near 56. Northeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Trenton, Mercer County Airport NJ
 40.28°N 74.86°W (Elev. 59 ft)
Last Update:
2:31 pm EDT Oct 16, 2026
Forecast Valid:
4pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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