Temps will rise into the upper 80's, I put a temperature projection chart for Morristown NJ below..
The peaks are the high temps for the given day, the first number is the day of the month, you can ignore the second number.
As you can see things will cool down by the middle to end of the week and we might even see some showers on Wednesday evening and night as a front passes through our area..
Heading into the weekend, I think the first half of the weekend is overall very decent with temps in the mid to high 70's. I am watching however a trough that might swing through the region later in the weekend that might bring some unsettled weather. But for now I will be positive and say we have a nice weekend ahead.
That's all for now, I keep saying and I will say again I do not think this will be a very hot summer. In fact looking at the trends of the longer range weather patterns the Winter of 2015 looks to be very interesting. Eventually there will be more to come on this..