It has been quite a while since we have had a warm up, but it appears as that streak will be shattered by a ridge that will overtake the Lower 48. Temperatures will be overwhelmingly warm across the west as they already have been, but for temperatures here in the Northeast US, we should only expect 90 as a maximum and most likely nothing more. This all will likely start tomorrow with the upper 70's in the northern part of the area to the middle 80's in the southern locations of the region. By Wednesday we should be having widespread 80's and as high as 90.
Just to say, because many people care about this factor, It also could be a little on the humid side of things because of the chance of thunderstorms. Wednesday and Thursday will definitely be the warmest days but by Friday, a trough will dig down into the northeast from Eastern Canada and provide slightly cooler air that will likely hold highs down into the 80's at most. In the longer range, after the warm up we should expect temperatures to return back to after average. Here is the Climate Prediction Center's 8 - 14 Day Temperature Outlook. So thanks for reading, keep cool during this warm and have a great rest of your day.