National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 40.32°N 74.62°W (Text-Only)
NWS Forecast for: Princeton Junction NJ
Issued by: National Weather Service Philadelphia, PA
Last Update: 1:11 am EDT Jun 18, 2025		Print

  • Overnight

    Overnight: A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 65. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Areas of fog before 9am. High near 86. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    Showers and
    Areas Fog
    then T-storms

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms, mainly before 8pm. Patchy fog between midnight and 3am. Low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    T-storms then
    Patchy Fog


  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. West wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny



  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy



  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny



  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy





    • Overnight: A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 65. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Areas of fog before 9am. High near 86. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Wednesday Night: Showers and thunderstorms, mainly before 8pm. Patchy fog between midnight and 3am. Low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Juneteenth: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. West wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Friday: Sunny, with a high near 85.

    Friday Night: Partly cloudy, with a low around 64.

    Saturday: Mostly sunny, with a high near 89.

    Saturday Night: Partly cloudy, with a low around 69.

    Sunday: Mostly sunny, with a high near 93.

    Sunday Night: Mostly clear, with a low around 73.

    Monday: Sunny and hot, with a high near 97.

    Monday Night: Mostly clear, with a low around 75.

    Tuesday: Sunny and hot, with a high near 98.


    Princeton Junction NJ
     40.32°N 74.62°W (Elev. 85 ft)

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