Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Overcast
9°C
48°F
| Humidity | 83% |
| Wind Speed | E 17 km/h |
| Barometer | 1016.1 mb (30.02 in) |
| Dewpoint | 6°C (43°F) |
| Visibility | 16 km |
| Wind Chill | 7°C (44°F) |
| Last update | 16 Mar 12:53 am EDT |
Extended Forecast for
Princeton NJ
Overnight
Low: 7 °C
Rain
Monday
High: 19 °C
Showers
Likely then
Severe
Thunderstorms
and BreezyMonday Night
Low: 0 °C
Breezy.
Severe
Thunderstorms
then ShowersTuesday
High: 5 °C
Mostly Sunny
Tuesday Night
Low: -6 °C
Mostly Clear
Wednesday
High: 4 °C
Mostly Sunny
Wednesday Night
Low: -4 °C
Mostly Cloudy
Thursday
High: 10 °C
Partly Sunny
Thursday Night
Low: 0 °C
Mostly Cloudy
Detailed Forecast
Overnight
A chance of rain, then rain and possibly a thunderstorm after 2am. Low around 7. East wind around 20 km/h. Chance of precipitation is 100%. New rainfall amounts between 5 and 7.5 mm possible.
Monday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Some of the storms could be severe. High near 19. Breezy, with a south wind 15 to 20 km/h increasing to 25 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 90%. New rainfall amounts between 7.5 mm and 1 cm possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Some of the storms could be severe. Low around 0. Breezy, with a south wind 35 to 40 km/h becoming west 25 to 30 km/h after midnight. Winds could gust as high as 70 km/h. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 cm possible.
Tuesday
Mostly sunny, with a high near 5. West wind around 25 km/h, with gusts as high as 45 km/h.
Tuesday Night
Mostly clear, with a low around -6. West wind 10 to 20 km/h.
Wednesday
Mostly sunny, with a high near 4.
Wednesday Night
Mostly cloudy, with a low around -4.
Thursday
Partly sunny, with a high near 10.
Thursday Night
Mostly cloudy, with a low around 0.
Friday
Mostly sunny, with a high near 13.
Friday Night
A chance of showers. Mostly cloudy, with a low around 3. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 14. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Partly sunny, with a high near 11.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Princeton NJ
40.35°N 74.67°W (Elev. 190 m)
40.35°N 74.67°W (Elev. 190 m)
4:13 pm EDT Mar 15, 2026
1am EDT Mar 16, 2026-6pm EDT Mar 22, 2026
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