A quick look back to 1936 shows some of the hottest temps recorded. Just look at July 14th when it hit it's peak.
Keep in mind, this was before there was any "feels like xxx". Also, wasn't much air conditioning in houses either, so I imagine the "feels like" temp was pretty high... if of course, there was such a made up thing back then.
Not sure, but, this looks like it was kinda hot back then too. I'm not saying it isn't hot... I'm just pointing out that what's happening today isn't all that unusual.
On July 9, 1936 temperature’s spiked, with many all-time record highs being set in both the Great Lakes and Northeast United States. The recap of temperatures are as follows for July 9th.
Rockford, IL: 101 °F (38 °C)[22]
Pittsburgh, PA: 101 °F (38 °C)
Syracuse, NY: 102 °F (39 °C)
Rochester, NY: 102 °F (39 °C)
Detroit, MI: 102 °F (39 °C)[28]
Philadelphia, PA: 103 °F (39 °C)
Albany, NY: 103 °F (39 °C)[29]
Baltimore, MD: 103 °F (39 °C)
Scranton, PA: 103 °F (39 °C)
Washington DC: 104 °F (40 °C)
Johnstown, PA: 104 °F (40 °C)
Columbus, OH: 105 °F (40.6 °C)
Warren, OH: 105 °F (40.6 °C)
Williamsport, PA: 106 °F (41.1 °C)
Trenton, NJ: 106 °F (41.1 °C)
Central Park, New York City: 106 °F (41.1 °C)
On July 10, the heat peaked in Mid-Atlantic and Northeast, with some areas setting all-time record highs in parts of the South and most of the Midwest. The recap is as follows.
Atlanta, GA: 100 °F (37.8 °C)
Pittsburgh PA: 101 °F (38.3 °C)
Detroit, MI: 102 °F (38.9 °C)[28]
Grand Rapids, MI: 102 °F (38.9 °C)[26]
Central Park, New York City: 102 °F (38.9 °C)[5]
Youngstown, OH: 103 °F (39.4 °C)
Philadelphia, PA: 104 °F (40.0 °C)
Richmond, VA: 105 °F (40.6 °C)
Washington DC: 105 °F (40.6 °C)
Lynchburg, VA: 106 °F (41.1 °C)
Rockford, IL: 106 °F (41.1 °C)[22]
Bowling Green, KY: 106 °F (41.1 °C)
St. Cloud, MN: 106 °F (41.1 °C)[30]
Baltimore, MD: 107 °F (41.7 °C)
Lexington, KY: 108 °F (42.2 °C)
Xenia, OH: 108 °F (42.2 °C)
Cumberland & Frederick, MD: 109 °F (42.8 °C)
Runyon, NJ: 110 °F (43.3 °C)
Phoenixville, PA: 111 °F (43.9 °C)
Martinsburg, WV: 112 °F (44.4 °C)
Aberdeen, SD: 114 °F (45.6 °C)
On July 13, the heat spread south through the Great Plains, with Wichita, Kansas reporting a high of 101 °F (38.3 °C), Fort Smith, Arkansas hitting 106 °F (41.1 °C), Tulsa, Oklahoma hitting 107 °F (41.7 °C), and Oklahoma City, Oklahoma hitting 101 °F (38.3 °C). Elsewhere, temperatures began to significantly rise with multiple areas hitting above 110 °F (43.3 °C). The recap is as follows:
Columbus, OH: 101 °F (38.3 °C)
Detroit, MI: 102 °F (38.9 °C)[28]
Green Bay, WI: 104 °F (40.0 °C)[24]
Minneapolis, MN: 105 °F (40.6 °C)[30]
Alpena, MI: 106 °F (41.1 °C)
Madison, WI: 106 °F (41.1 °C)[23]
Duluth, MN: 106 °F (41.1 °C)[25]
St. Cloud, MN: 107 °F (41.7 °C)[30]
Decatur, IL: 108 °F (42.2 °C)[18]
Grand Rapids, MI: 108 °F (42.2 °C)[26]
Evansville, IN: 108 °F (42.2 °C)
Kalamazoo, MI: 109 °F (42.8 °C)[26]
Rockford, IL: 110 °F (43.3 °C)[22]
Saginaw, MI: 111 °F (43.9 °C)[28]
Eau Claire, WI: 111 °F (43.9 °C)[31]
Waterloo, IA: 112 °F (44.4 °C)[21]
Mt. Vernon, IL: 112 °F (44.4 °C)[18]
Mio, MI: 112 °F (44.4 °C)
Henderson, KY: 113 °F (45.0 °C)
Wisconsin Dells, WI: 114 °F (45.6 °C)
July 14 was the peak day of the heat wave for most areas with countless record-breaking temperatures broken across many areas. The records are as follows.
Detroit, MI: 104 °F (40.0 °C) (105 °F (40.6 °C) on July 24, 1934)
Springfield, MO: 104 °F (40.0 °C) (113 °F (45.0 °C) in 1954)
Indianapolis, IN: 106 °F (41.1 °C) (tied July 22, 1901 and July 21, 1934)[32]
Columbus, OH: 106 °F (41.1 °C) (tied July 21, 1934)
Cincinnati, OH: 106 °F (41.1 °C) (tied July 24, 1934)
Madison, WI: 107 °F (41.7 °C)[23]
Louisville, KY: 107 °F (41.7 °C)
Kalamazoo, MI: 108 °F (42.2 °C)[26]
Minneapolis, MN: 108 °F (42.2 °C)[30]
Rochester, MN: 108 °F (42.2 °C)
Xenia, OH: 108 °F (42.2 °C)
St. Louis, MO: 108 °F (42.2 °C) (115 °F (46.1 °C) in 1954)
Lima, OH: 109 °F (42.8 °C)
Cedar Rapids, IA: 109 °F (42.8 °C)[18]
Dubuque, IA: 110 °F (43.3 °C)
Terre Haute, IN: 110 °F (43.3 °C)
Springfield, IL: 110 °F (43.3 °C) (112 °F (44.4 °C) in 1954)[18]
Decatur, IL: 110 °F (43.3 °C) (113 °F (45.0 °C) in 1954)[18]
Moline, IL: 111 °F (43.9 °C)[18]
Burlington, IA: 111 °F (43.9 °C)[18]
Rockford, IL: 112 °F (44.4 °C)[22]
Waterloo, IA: 112 °F (44.4 °C)[18]
Palestine, IL: 112 °F (44.4 °C) (114 °F (45.6 °C) in 1954)[18]
Mt. Vernon, IL: 114 °F (45.6 °C)[18]
Collegeville, IN: 116 °F (46.7 °C)