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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

27°F

-3°C

Humidity 78%
Wind Speed NW 5 mph
Barometer 30.37 in (1028.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 21 Apr 5:53 am EDT
Extended Forecast for

Trenton, Mercer County Airport NJ

Freeze Warning April 21, 06:13am until April 21, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning April 21, 06:13am until April 21, 09:00am

    NOW until 9:00am Tue

    Freeze Warning

  • Today

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Showers likely, mainly after 4am. Increasing clouds, with a low around 43. South wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 61. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. North wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Northwest wind 5 to 15 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 55. North wind around 5 mph becoming southwest in the afternoon.
Tonight
Showers likely, mainly after 4am. Increasing clouds, with a low around 43. South wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 61. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 45. North wind around 5 mph.
Thursday
Mostly sunny, with a high near 72. Northwest wind 5 to 15 mph.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 67.
Friday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Saturday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.27°N 74.8°W (Elev. 157 ft)
Last Update:
4:10 am EDT Apr 21, 2026
Forecast Valid:
6am EDT Apr 21, 2026-6pm EDT Apr 27, 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