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Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

51°F

11°C

Humidity 66%
Wind Speed E 8 mph
Barometer 30.14 in (1020.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 26 Apr 7:53 pm EDT
Extended Forecast for

2 Miles SSE Princeton Junction NJ

Frost Advisory April 27, 12:00am until April 27, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy frost after midnight. Otherwise, mostly clear, with a low around 37. East wind around 5 mph becoming calm.

    Low: 37 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Southeast wind around 5 mph becoming calm.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 67 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 44. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly after 8pm. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 40%.

    High: 60 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost after midnight. Otherwise, mostly clear, with a low around 37. East wind around 5 mph becoming calm.
Monday
Sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 41. Southeast wind around 5 mph becoming calm.
Tuesday
Increasing clouds, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 44. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
A chance of showers after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers, mainly after 8pm. Low around 47. Chance of precipitation is 90%.
Thursday
A chance of showers before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Princeton Junction NJ
 40.29°N 74.6°W (Elev. 98 ft)
Last Update:
4:08 pm EDT Apr 26, 2026
Forecast Valid:
8pm EDT Apr 26, 2026-6pm EDT May 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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