Hazardous Weather Conditions
Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
83°F
28°C
| Humidity | 59% |
| Wind Speed | SW 9 mph |
| Barometer | 30.09 in (1018.0 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 19 May 9:53 am EDT |
Extended Forecast for
Princeton NJ
Heat Advisory May 19, 10:53am until May 20, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 97 °F
Hot
Tonight
Low: 73 °F
Partly Cloudy
Wednesday
High: 93 °F
Sunny then
Showers
LikelyWednesday Night
Low: 56 °F
Showers
LikelyThursday
High: 70 °F
Slight Chance
ShowersThursday Night
Low: 51 °F
Mostly Cloudy
Friday
High: 65 °F
Chance
ShowersFriday Night
Low: 48 °F
Showers
Detailed Forecast
Today
Sunny and hot, with a high near 97. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 73. Southwest wind around 5 mph.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 93. West wind 5 to 10 mph, with gusts as high as 20 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. Mostly cloudy, with a low around 56. North wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers before 2pm. Partly sunny, with a high near 70. North wind around 5 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Friday Night
Showers. Low around 48. Chance of precipitation is 80%.
Saturday
Showers. High near 62. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 52. Chance of precipitation is 80%.
Sunday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Memorial Day
Mostly cloudy, with a high near 73.
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)
4:07 am EDT May 19, 2026
10am EDT May 19, 2026-6pm EDT May 25, 2026
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