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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

40°F

4°C

Humidity 97%
Wind Speed Calm
Barometer 30.09 in (1018.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Apr 9:53 pm EDT
Extended Forecast for

Trenton, Mercer County Airport NJ

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 37. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 37 °F

    Increasing
    Clouds

  • Monday

    Monday: A chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind 5 to 15 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. North wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 41. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

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

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 37. West wind 5 to 10 mph becoming light and variable in the evening.
Monday
A chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind 5 to 15 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 29. North wind around 5 mph.
Tuesday
Sunny, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 41. South wind around 5 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 73.
Friday Night
A chance of showers. Partly cloudy, with a low around 48. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 64. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.28°N 74.83°W (Elev. 200 ft)
Last Update:
4:11 pm EDT Apr 19, 2026
Forecast Valid:
10pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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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