Weather forecast for: Raritan NJ
Last Update: 1:04 am EDT Sep 1, 2026
Overnight: Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: A chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 79. Northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 67. East wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday: Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 2pm. High near 88. Chance of precipitation is 80%. 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 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Friday: Mostly sunny, with a high near 85.
Friday Night: Mostly clear, with a low around 62.
Saturday: Sunny, with a high near 81.
Saturday Night: Partly cloudy, with a low around 59.
Sunday: Sunny, with a high near 79.
Sunday Night: Mostly clear, with a low around 57.
Labor Day: A chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
WeatherWorld.com
