The National Weather Service says a wind chill warning issued for the north and east of the state remains in effect Thursday.
The predicted high for northern Piscataquis County, including Baxter State Park and Chamberlain Lake, is six degrees below zero. Winds gusting up to 20 miles per hour could make it feel 45 below.
Some snow is expected, but not much accumulation.
The high in the Caribou/Presque Isle area is expected to be four below zero.
Others areas of the state are experiencing a relative heat wave, with predicted highs of 13 degrees in the Portland area, and 5 degrees in Lewiston-Auburn.
State homeless shelters are adding more beds.