Heavy Rain in the Southeast and Portions of the Central Plains; Mountain Snow in the West

Scattered areas of heavy rain continue to produce isolated flash flooding across the coastlines of the central Gulf and Southeast. A storm system will bring mountain snow, locally heavy rain, gusty winds and much cooler temperatures to portions of the western and central U.S. Above average temperatures will advance eastward into the Great Lakes and Northeast today and Monday. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

83°F

28°C

Humidity 33%
Wind Speed S 3 mph
Barometer 30.27 in (1024.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Oct 2:53 pm EDT
Extended Forecast for

Plainsboro NJ

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming southwest around 5 mph.

    High: 81 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 56. South wind around 5 mph becoming calm.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 81. Southwest wind 5 to 10 mph.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, then showers and possibly a thunderstorm after 2am.  Low around 58. South wind 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 8am, then showers likely.  High near 70. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, clear, with a low around 51. Calm wind.
Monday
Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming southwest around 5 mph.
Monday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 56. South wind around 5 mph becoming calm.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81. Southwest wind 5 to 10 mph.
Tuesday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 58. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 8am, then showers likely. High near 70. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 42.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Plainsboro NJ
 40.34°N 74.59°W (Elev. 89 ft)
4:09 am EDT Oct 5, 2025
3pm EDT Oct 5, 2025-6pm EDT Oct 12, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database