Weather forecast for: Raritan NJ
Last Update: 4:08 am EDT Aug 31, 2026
Overnight: Scattered showers and thunderstorms before 5am, then isolated showers. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday: Isolated showers, then scattered showers and thunderstorms after 4pm. Mostly cloudy, with a high near 81. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night: A chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Calm wind. 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 before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%. 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 before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Thursday: A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday: Mostly sunny, with a high near 82.
Friday Night: Partly cloudy, with a low around 61.
Saturday: A chance of showers. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Saturday Night: A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Sunday: Sunny, with a high near 77.
WeatherWorld.com
