Weather forecast for: Allendale NJ
Last Update: 3:05 pm EDT Aug 30, 2026
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 83. Southwest wind around 9 mph.
Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 40%.
Monday: A 20 percent chance of showers. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 81. Calm wind.
Monday Night: A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.
Tuesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. 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 85. 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 40%.
Friday: Mostly sunny, with a high near 81.
Friday Night: Partly cloudy, with a low around 61.
Saturday: Mostly sunny, with a high near 78.
Saturday Night: Partly cloudy, with a low around 58.
Sunday: Mostly sunny, with a high near 77.
WeatherWorld.com
