Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
63°F
17°C
| Humidity | 37% |
| Wind Speed | S 9 G 18 mph |
| Barometer | 30.33 in (1026.6 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 12 Apr 4:53 pm EDT |
Extended Forecast for
Princeton Junction NJ
Tonight
Low: 47 °F
Mostly Cloudy
Monday
High: 80 °F
Partly Sunny
Monday Night
Low: 58 °F
Decreasing
CloudsTuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 63 °F
Partly Cloudy
Wednesday
High: 89 °F
Mostly Sunny
Wednesday Night
Low: 64 °F
Mostly Cloudy
Thursday
High: 89 °F
Partly Sunny
Thursday Night
Low: 65 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 47. South wind 5 to 10 mph.
Monday
Partly sunny, with a high near 80. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. West wind around 5 mph.
Tuesday
Mostly sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 89.
Thursday Night
Mostly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
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)
4:11 pm EDT Apr 12, 2026
5pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026
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