In what is generally the hottest week of the year, temperatures in the Upper Midwest were setting record lows this week. What was going on?
According to meteorologists, it's a summertime version of the "polar vortex" that most of us heard about for the first time last winter.
The surge of cooler, drier air was predicted to continue to set record low temperatures across the Great Plains and Midwest this week.
While some, especially those working with cattle, appreciated the cooler temperatures, others bundled up.
The almost autumn-like weather was appreciated by those getting ready to haul cattle, hogs and sheep to the many fairs and other exhibitions taking place around the state.
According to AccuWeather Meteorologist Steve Travis, rather than days of hazy sunshine and high humidity, typical of mid-July, many areas will experience a deep blue sky, low humidity and cool breezes.
Travis said temperatures failed to climb past the 60s F from the eastern part of the Dakotas, through Minnesota, northern Wisconsin and the Upper Peninsula of Michigan on Monday.
Minneapolis, home of the 2014 Major League Baseball All-Star Game on Tuesday evening, set a record low maximum temperature of 65 on Monday, breaking the old record of 68 set in 1884.
Nearly a dozen cities across the Plains set or tied record lows Tuesday morning.
They predicted the polar air would continue to expand southward over the Plains, eastward across the Midwest and would touch the interior South and Appalachians.
High temperatures ranged from the upper 60s to the lower 70s at midweek from Minneapolis to Chicago, Milwaukee, Detroit, Indianapolis and Cleveland with cool temperatures prevailing as far south as Nashville and Oklahoma City.
While dairy farmers appreciated the cooler temperatures and the way cows enjoy this weather, corn growers across the state are beginning to be concerned that there hasn't been enough heat to bring their crops along.
Madison meteorologists report that the state has not experienced a single day with temperatures over 90 degrees yet this summer.
That won't change this week as the "polar vortex" was predicted to continue to bring record low temperatures to the Midwest through the end of the week.
Meteorologists were predicting that temperatures would dip well into the 60s on multiple nights from northern Mississippi to central Alabama, central Georgia and portions of the Carolinas.