Is the Sun Road open now ?

Yes

And what a road it is! Get started early if you plan to stop at Logan's Pass at the top because that parking lot fills quickly...and once you're there you will want to do some hiking.

Yes it is currently open and is typically open from the end of June /beginning of July through September depending on snow conditions

Yes. We were on it 2 days ago. Should be open through September unless there is some kind of problem.