Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

A Few Clouds

69°F

21°C

Humidity 53%
Wind Speed W 5 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 11:53 pm EDT
Extended Forecast for

Princeton Junction NJ

  • Overnight

    Overnight: Clear, with a low around 60. West wind around 10 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 82. West wind around 15 mph, with gusts as high as 30 mph.

    High: 82 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 59. West wind 5 to 10 mph becoming light  in the evening.

    Low: 59 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 85. Light west wind increasing to 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am.  Partly cloudy, with a low around 62. West wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am.  High near 81. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am.  Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 60. West wind around 10 mph.
Saturday
Increasing clouds, with a high near 82. West wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 59. West wind 5 to 10 mph becoming light in the evening.
Sunday
Sunny, with a high near 85. Light west wind increasing to 5 to 10 mph in the morning.
Sunday Night
A chance of showers after 2am. Partly cloudy, with a low around 62. West wind around 5 mph becoming calm. Chance of precipitation is 30%.
Monday
Showers, with thunderstorms also possible after 11am. High near 81. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton Junction NJ
 40.32°N 74.59°W (Elev. 85 ft)
9:49 pm EDT Jun 19, 2026
12am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database