In all likelihood, today will be the hottest June day on record in Salt Lake City.
The Salt Lake City International Airport recorded a minimum temperature of 78ºF overnight, tying the all-time high minimum for the month.
On June 28 and 29, 2013, the Salt Lake City airport reported maximum temperatures of 105ºF, but the minima were 71ºF and 74ºF, yielding averages of 88ºF and 89.5ºF, respectively, lower than what I'm anticipating for today.
In addition, during that stretch of hot weather in late June 2013, the temperature sensor at the Salt Lake City airport was clearly reading high (see What's Up @ KSLC from August 20, 2013), so the books during that period are essentially cooked.
The bottom line is that you will experience the hottest June day ever in Salt Lake City today.
I say YOU because I have been happily ensconced in southeast Alaska since the Salt Lake heat wave began and haven't seen a temperature above 71ºF in over a week. Note the rain jackets and smiling faces.
Heading home soon and not looking forward to it...