Here is video footage of weather conditions at High Point Monument on the first Tuesday in September 2014. On this day, heat and humidity were on the rise, and they created a good deal of instability and cumulus clouds during the afternoon at the highest elevation in New Jersey. A shower developed to the southwest near the Delaware River Gap, and scooted to the east just south of the High Point Monument. Hot and humid weather that began over the weekend continued in New Jersey on Tuesday. High temperature at GWC in South Plainfield was 91 degrees with a dew point of 75 for a heat index of 101. Up in Northwest Jersey, the mercury climbed to 85 at High Point and 91 at Sussex Airport.