Millions of Americans shivered through a chilly Saturday, and some have already seen (gulp) snow.
The Weather Channel reports the coldest air mass of the season has descended on the nation's Midwest and Northeast, plunging temperatures into the 30s — and even high 20s in some locations.
Freeze warnings and frost advisories blanketed a stretch from Iowa south to Mississippi and east through Maine, according to the National Weather Service. The cold blast was expected to last through the weekend.
In some spots, the first chill was accompanied by first snowfalls. Flurries were reported in the northern parts of New York, according to Weather.com. Nearly 4 inches of snow were on the ground in Dyer Brook, Maine, by Saturday afternoon, while some other northern parts of the state got between 1 to 3 inches, according to the National Weather Service.
Meanwhile, Marquette, Michigan, picked up 2.5 inches of snow, which is the highest daily total the city has seen in October since 1976, according to the National Weather Service.
Higher elevations in Maine and New Hampshire won't be spared from the snow, where up to 2 inches were expected by Saturday night. Other parts of New England could expect temperatures to drop to freezing or below. Boston, where the lowest recorded temperature on Sunday's date is 31, will be right on the cusp of breaking that record, according to NECN.
This story originally appeared on NBCNews.com