PP ... I agree that roses are tough, but Elaine is right about shading the plant if you transplant the rose when temps are high. In my hot, dry climate, without the shading and a few other things, the rose would be toast before it could get its feet under it.
I have transplanted roses in triple digit temps in a dry climate. It's doable, but it's less stressful for the rose, if you can wait until the temps drop.
Smiles,
Lyn