High oil temp 5000 rpm

Here in Las Vegas, we have temps in the 105 to 108-degree range. I have experienced higher oil temps recently (250 to 260). 

During this time the CHT and EGT temps are running well within the green. 

I performed a compression test and two cylinders tested at 82/87 and two others were at 72/87.

Question:

Is 260 deg. oil temp high enough to be a concern?

Is the 72/87 compression check a problem?

Or am I just overthinking this problem?

Ernie