Unseasonably cool air that has settled into the Midwest this weekend continues to take down records by storm. Following a weekend that felt more like May than July, temperatures will start to rebound this upcoming week.
Dozens of record morning lows were once again broken Sunday morning in areas from Wisconsin and Iowa to Mississippi as temperatures plunged into the 50s. Morning lows this time of year generally did not dip below the mid-60s or lower 70s across the nation's midsection.
Numerous record lows and minimum highs were also broken in many of the same areas Friday and Saturday. For some cities and towns, this weekend was the coolest weekend on record since the 1920s or even earlier!
The mercury at St. Louis, Mo., only rose to 73 degrees Saturday, breaking the old record of 75 degrees set back in 1924. Louisville, Ky., also had its coolest high for the date, only topping out at 70 degrees. The old record was 75 set all the way back in 1918.
Following another cool morning Monday, warmer air will surge northeastward across the Upper Midwest and Great Lakes, putting an end to the cool spell. The northward push of warm, moist air will also support severe storms across the Plains and Midwest into Monday. The Southwest Regional News story has more information on this threat.
Highs will bounce from the 60s and lower 70s to the upper 70s and lower 80s across the Great Lakes Monday and hold fairly steady much of the upcoming week. However, no classic 90-degree July heat is in sight.
For many people, the lack of sizzling summer heat is good news, saving them money on energy bills with minimal use of air conditioning. For others, especially those that enjoy water sports, this summer has been a bit of a disappointment. Pools and beaches seem much less inviting when temperatures have a hard time rising into the 70s.
For Chicago, this July has actually been the second coolest on record so far. The Windy City has not even reached the 90-degree mark this month. For Detroit, this July could turn out to be the coolest on record. Average temperatures so far this month are running several tenths of a degree above the average for the coolest July on record, which was in 1891.