 From the KOTA studios, lows level off around 64. Overnight, under partly cloudy skies, winds out of the south 10 to 15 miles an hour. Sunshine mixed with clouds at times again. Monday, severe thunderstorms likely. High temperatures reach up to 89. Slight chance for storms. Monday night, lows level off around 58. Mainly clear skies. That's your weatherology forecast powered by weatherology.com. I'm staff meteorologist Ray Miller from the Signature Auto Sales Weather Center.