


Hazardous Weather Conditions
Current conditions at
Trenton, Mercer County Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
36°C
96°F
Humidity | 36% |
Wind Speed | W 13 km/h |
Barometer | 1016.0 mb (30.03 in) |
Dewpoint | 18°C (65°F) |
Visibility | 16 km |
Heat Index | 37°C (99°F) |
Last update | 24 Jun 6:53 pm EDT |
Extended Forecast for
Princeton NJ
Extreme Heat Warning June 24, 07:03pm until June 25, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Tonight
Low: 25 °C
Mostly Clear
Wednesday
High: 36 °C
Sunny then
Chance
T-stormsWednesday Night
Low: 23 °C
Chance
T-storms then
Chance
ShowersThursday
High: 27 °C
Chance
Showers then
Chance
T-stormsThursday Night
Low: 17 °C
Chance
T-stormsFriday
High: 22 °C
Chance
ShowersFriday Night
Low: 18 °C
Chance
T-stormsSaturday
High: 27 °C
Mostly Cloudy
then Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 25. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 36. Heat index values as high as 40. Northwest wind 5 to 10 km/h. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 27. East wind around 10 km/h. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
A chance of showers and thunderstorms. Cloudy, with a low around 17. East wind around 10 km/h. Chance of precipitation is 50%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday
A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 22. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Friday Night
A chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 27. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 29. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 31. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 32. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Princeton NJ
40.37°N 74.67°W (Elev. 256 m)
40.37°N 74.67°W (Elev. 256 m)
4:11 pm EDT Jun 24, 2025
7pm EDT Jun 24, 2025-6pm EDT Jul 1, 2025