 The southern portion of the system overall will produce some showers and thunderstorms through the central Rockies into the four corners. Farther east through the Great Lakes into much of the southeast and continuing through the middle Atlantic and most of New England, high pressure will hold sway over a good swath of the area. This will lead to a good amount of sunshine and highs in the 70s in the north and then warming into the mid-90s farther south.