Plants grow well in Arizona where the summer temps rise above 100 degrees all the time. Ideal temp is far less....75 degrees...but 88 is ok.

With temps that high, it is important to have FRESH air brought into your grow area. Just blowing wind around wont cut it.

Fresh air and CO2 in and hot stale used air OUT.

Means you need an exhaust and inlet.

As far as your fan right on them....no problem. Fans will not blow a healthy plant over...it will only cause them to be stronger and more stable.

I have never used a oscillating fan... Just make sure ALL air is moved around...I use 3 fans for air right on plants since the day they were born.

In the attached pic, you will see a fain on the right, a fan on the left, both blowing DOWN.

In the middle, I have a yellow fan, at the bottom, blowing UP.

This creates a complete air movement environment and that is what is very important. Circulate and exchange your entire air several times per hour.

HAPPY GROWING