WINONA Minn. – The first frost of the season coated the ground in deeper coulees in Winona County just before dawn. It was a mere skiff. \that burned off quickly after dawn. Most of southeast Minnesota was spared for one more day with lows dancimg just above the freezing mark. If your tomatoes were spared, better cover them now. And bring in the houseplants. Lows were predicted for 32 and 33 degrees in most places Monday night. Skies were forecast to be sunny with afternoon highs the mid-40s.