Expect a lot of sunshine early in the day, and then a mix of sun and clouds by the afternoon. Winds will not be much of a factor.. High temperatures will be in the low 40s for Rapid City and points to the south. Upper 30s are expected to the north.
Very cold Canadian air will move in for the middle portion of the week. High temperatures on Tuesday will only top out in the single digits and teens throughout the area. By Wednesday morning, some locations will dip below zero! Not many like going out in the bitter cold, so Sunday and Monday will be a great time to get your outdoor plans done so you can rest in a warm environment during the middle of the week.