Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fog/Mist
49°F
9°C
| Humidity | 100% |
| Wind Speed | NW 8 mph |
| Barometer | 29.93 in (1013.2 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 1.25 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 7 Mar 10:53 pm EDT |
Extended Forecast for
Princeton Junction NJ
Tonight
Low: 48 °F
Chance
Showers then
Showers
LikelySunday
High: 67 °F
Chance
ShowersSunday Night
Low: 39 °F
Mostly Clear
Monday
High: 68 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 52 °F
Partly Cloudy
Wednesday
High: 75 °F
Mostly Cloudy
Wednesday Night
Low: 56 °F
Mostly Cloudy
then Chance
Showers
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 48. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 39. West wind around 5 mph becoming calm.
Monday
Sunny, with a high near 68. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. Southwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 75.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Thursday
Showers likely before 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 47.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 54.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Princeton Junction NJ
40.32°N 74.62°W (Elev. 85 ft)
40.32°N 74.62°W (Elev. 85 ft)
4:09 pm EST Mar 7, 2026
10pm EST Mar 7, 2026-6pm EDT Mar 14, 2026
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