Weather in Mountainside, New Jersey
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 06:06 PM ET · Refreshes every hour
56°F
Overcast
Feels like 54°F
97%
Humidity
7 mph
Wind Speed
About Weather in Mountainside
Mountainside is located in New Jersey (coordinates: 40.680722°N, 74.360292°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.