I like to track the new daily averages to include 2020. For what it’s worth, from July 1-19 the 1981-2020 average high is 89.2. A lot more goes into it than simple averaging but there are eight individual days with rounded average high temps over 90.
There’s even one day with an average high of 92 but frustratingly, another with an average of 87. It will be close to see if we crack 90 on any days in the official climo.