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

Heavy Rainfall and Flooding in the Southwest and Four Corners; Unsettled Weather in Florida

Heavy to excessive rainfall will continue today across portions of the Southwest and Four Corners Region, leading to flash, urban and small stream flooding. Significant river flooding is expected through Monday. Heavy rainfall is expected across southern and eastern Florida through Monday, with isolated flash flooding possible. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

41°F

5°C

Humidity 86%
Wind Speed Calm
Barometer 30.44 in (1030.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 2 Nov 2:53 am EST
Extended Forecast for

Princeton Junction NJ

  • Overnight

    Overnight: Partly cloudy, with a low around 35. Southwest wind around 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the morning.

    High: 66 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming southwest around 5 mph in the morning.

    High: 70 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 45. South wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 73.

    High: 73 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. Southwest wind around 5 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the morning.
Monday Night
Patchy fog after 9pm. Otherwise, mostly clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45. South wind around 5 mph becoming calm in the evening.
Wednesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
A chance of rain. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Thursday Night
Rain likely. Cloudy, with a low around 56. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton Junction NJ
 40.32°N 74.62°W (Elev. 85 ft)
Last Update:
1:26 am EST Nov 2, 2026
Forecast Valid:
3am EST Nov 2, 2026-6pm EST Nov 8, 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