National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain with Flooding Possible in the Southwest U.S. and Upper Midwest; Heat Continues in the East

Widespread showers and thunderstorms in the Four Corners region and northern Plains into the Upper Midwest today may bring heavy to excessive rainfall with a potential for scattered instances of flash and urban flooding. Dangerous heat will continue to impact the Midwest and Ohio Valley today and peak in the Mid-Atlantic/I-95 Urban Corridor this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

93°F

34°C

Humidity 40%
Wind Speed SW 7 mph
Barometer 30.06 in (1017.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 21 Jun 5:53 pm EDT
Extended Forecast for

Plainsboro NJ

Excessive Heat Watch June 23, 06:00am until June 23, 08:00pm
Heat Advisory June 21, 06:02pm until June 23, 06:00am
Click here for hazard details and duration
Excessive Heat Watch
Heat Advisory
  •  
    Heat Advisory June 21, 06:02pm until June 23, 06:00am

    NOW until 6:00am Sun

    Heat Advisory

  • Tonight

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 20%.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Heat index values as high as 102. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 76. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    T-storms
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. South wind around 5 mph.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Heat index values as high as 102. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 76. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny and hot, with a high near 97.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Thursday Night
A chance of thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Friday
Sunny, with a high near 86.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Plainsboro NJ
 40.34°N 74.59°W (Elev. 89 ft)
Last Update:
4:12 pm EDT Jun 21, 2024
Forecast Valid:
6pm EDT Jun 21, 2024-6pm EDT Jun 28, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation