Temperatures this morning have plummeted to readings usually seen in January. Spencer and Estherville have fallen to 2° although Spencer now is at a balmy 3°. Many other stations in northern Iowa have fallen below 10°. Some of the colder valleys may have dropped to near 0 in NC and NE Iowa. Good news is that this will be the coldest morning of the next 7 days. The bad news is winter is still 1 month away and more of these nights are to come.