Weather forecast for: Mountainside NJ
Last Update: 1:22 pm EDT Sep 13, 2026
This Afternoon: Mostly sunny, with a high near 80. West wind around 5 mph.
Tonight: Partly cloudy, with a low around 64. Calm wind becoming northwest 5 to 7 mph after midnight.
Monday: Partly sunny, then gradually becoming sunny, with a high near 73. North wind 9 to 11 mph, with gusts as high as 23 mph.
Monday Night: Clear, with a low around 53. North wind 5 to 7 mph.
Tuesday: Sunny, with a high near 72. Northeast wind around 5 mph becoming light and variable in the morning.
Tuesday Night: Mostly clear, with a low around 55.
Wednesday: Sunny, with a high near 79.
Wednesday Night: Partly cloudy, with a low around 62.
Thursday: Mostly sunny, with a high near 81.
Thursday Night: Partly cloudy, with a low around 64.
Friday: A 30 percent chance of showers. Partly sunny, with a high near 80.
Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday: A 30 percent chance of showers. Partly sunny, with a high near 76.
WeatherWorld.com
