


Hazardous Weather Conditions
Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Overcast
74°F
23°C
Humidity | 97% |
Wind Speed | S 7 mph |
Barometer | 30.05 in (1016.7 mb) |
Dewpoint | 73°F (23°C) |
Visibility | 10.00 mi |
Last update | 14 Jul 5:53 am EDT |
Extended Forecast for
Princeton NJ
Flood Watch July 14, 02:00pm until July 15, 02:00am
Today
High: 87 °F
Slight Chance
T-storms and
Patchy Fog
then T-storms
LikelyTonight
Low: 71 °F
Heavy Rain
and Patchy
Fog then
Showers
Likely and
Patchy FogTuesday
High: 87 °F
Showers
Likely and
Patchy FogTuesday Night
Low: 71 °F
Showers
Likely then
Slight Chance
ShowersWednesday
High: 88 °F
Chance
Showers then
Showers
LikelyWednesday Night
Low: 73 °F
Showers
Likely then
Chance
T-stormsThursday
High: 91 °F
Chance
Showers then
Showers
LikelyThursday Night
Low: 74 °F
Showers
Likely then
Partly CloudyFriday
High: 91 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
Today
Showers and thunderstorms likely, mainly after 3pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 87. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 2am, then showers likely and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Patchy fog before 2am, then patchy fog after 4am. Low around 71. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 87. Calm wind becoming southeast around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 11pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Princeton NJ
40.35°N 74.67°W (Elev. 190 ft)
40.35°N 74.67°W (Elev. 190 ft)
4:12 am EDT Jul 14, 2025
6am EDT Jul 14, 2025-6pm EDT Jul 20, 2025