Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
15°F
-9°C
| Humidity | 84% |
| Wind Speed | Calm |
| Barometer | 30.22 in (1023.0 mb) |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Last update | 16 Dec 6:53 am EST |
Extended Forecast for
Princeton NJ
Today
High: 30 °F
Sunny
Tonight
Low: 18 °F
Partly Cloudy
Wednesday
High: 42 °F
Mostly Sunny
Wednesday Night
Low: 20 °F
Partly Cloudy
Thursday
High: 53 °F
Mostly Sunny
Thursday Night
Low: 42 °F
Rain Likely
then RainFriday
High: 50 °F
Chance Rain
Friday Night
Low: 23 °F
Mostly Clear
Saturday
High: 38 °F
Partly Sunny
Detailed Forecast
Today
Sunny, with a high near 30. Calm wind becoming west around 5 mph.
Tonight
Partly cloudy, with a low around 18. Calm wind becoming southwest around 5 mph.
Wednesday
Mostly sunny, with a high near 42. Southwest wind around 5 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 20. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Rain. Low around 42. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A chance of rain before 1pm. Partly sunny, with a high near 50. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 23.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 39.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Princeton NJ
40.35°N 74.67°W (Elev. 190 ft)
40.35°N 74.67°W (Elev. 190 ft)
4:09 am EST Dec 16, 2025
7am EST Dec 16, 2025-6pm EST Dec 22, 2025
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