Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

69°F

21°C

Humidity 87%
Wind Speed Calm
Barometer 30.05 in (1017.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 22 Aug 1:53 am EDT
Extended Forecast for

Plainsboro NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm.  Cloudy, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 83. Light south wind becoming west 5 to 10 mph in the morning.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. West wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Cloudy, with a high near 77. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. Light south wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 59. West wind around 5 mph becoming calm.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Plainsboro NJ
 40.34°N 74.59°W (Elev. 89 ft)
7:27 pm EDT Aug 21, 2026
2am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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