Briefing for Late June Heat Wave
An early season heat wave will bring dangerously hot and humid conditions across most of the region beginning Sunday through Wednesday. Read More >
Hazardous Weather Conditions
Current conditions at
Trenton, Mercer County Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Partly Cloudy
88°F
31°C
| Humidity | 46% |
| Wind Speed | SW 7 mph |
| Barometer | 30.08 in (1017.6 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 90°F (32°C) |
| Last update | 21 Jun 4:53 pm EDT |
Extended Forecast for
Monmouth Junction NJ
Extreme Heat Warning June 22, 08:00am until June 25, 08:00pm
Tonight
Low: 71 °F
Partly Cloudy
Sunday
High: 97 °F
Hot
Sunday Night
Low: 77 °F
Mostly Clear
Monday
High: 101 °F
Hot
Monday Night
Low: 78 °F
Mostly Clear
Tuesday
High: 101 °F
Hot
Tuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 96 °F
Mostly Sunny
Wednesday Night
Low: 72 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming light.
Sunday
Mostly sunny and hot, with a high near 97. Heat index values as high as 104. West wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 77. West wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. West wind around 5 mph becoming calm.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Mostly sunny, with a high near 96.
Wednesday Night
Mostly cloudy, with a low around 72.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Monmouth Junction NJ
40.38°N 74.55°W (Elev. 98 ft)
40.38°N 74.55°W (Elev. 98 ft)
4:12 pm EDT Jun 21, 2025
5pm EDT Jun 21, 2025-6pm EDT Jun 28, 2025
Additional Resources
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Hourly Weather Forecast
