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

Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

76°F

24°C

Humidity 69%
Wind Speed S 10 mph
Barometer 30.11 in (1019.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 10:53 am EDT
Extended Forecast for

Plainsboro NJ

  • Today

    Today: Showers likely, mainly after 4pm. Cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 11pm. Patchy fog. Low around 67. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Calm wind becoming northwest 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: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 87. North wind around 5 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

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

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely, mainly after 4pm. Cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, with thunderstorms also possible after 11pm. Patchy fog. Low around 67. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Calm wind becoming northwest 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.
Monday Night
Partly cloudy, with a low around 66. Calm wind.
Tuesday
Sunny, with a high near 87. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 67. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 62.
Friday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plainsboro NJ
 40.34°N 74.59°W (Elev. 89 ft)
Last Update:
4:09 am EDT Aug 16, 2026
Forecast Valid:
11am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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