Current chill lingers into next week

The system that brought the cold air to the Midwest on Monday developed into another big nor’easter off New England, with interior Maine can expect over a foot of new snow. Meanwhile, frigid air by March standards settled into the Midwest. Embarrass, Minn. recorded a low of -30° Tuesday morning, with below zero readings speckled across the north.
This cold pattern is now well established across the northeast quarter of the country, and Chicago will remain along the western flank of this frigid air mass until further notice. However, just a few hundred miles to the west, more spring-like temperatures are in control, and some of this mild air approaches by early next week. Before then, the only weather maker of the next week races southeast from the Canada for some snow here on Thursday, before developing into the next big winter storm off the northeast coast on Saturday.