Last Day of June

Curious about this wildflower that appeared in my garden and I see it flourishing on the sides of the roads.  Something wild and nice for the last day of June '21.
We are really cookin' here still. It did not go below 79ªF inside my house last night with the windows and doors open but no breeze. Expecting to get to 100º outdoors today. This is our usual July/August weather. So, what to expect then?