The existence of you, your will, your intellect, and everything else is due to God’s present action, which is at all times. God doesn’t know the future by seeing the future. He knows the future because He knows Himself, and He knows His Act. Since everything, everything exists in and by God’s Act, and because He knows His Act perfectly, He knows everything that is part of that Act. That is where his omniscience comes from: His knowledge of Himself.
He doesn’t have visions of the future or foresight in the sense we’d ascribe to a human seeing the future.
So the answer to your question is “yes”, I believe. Or perhaps, it is better to say that His knowledge of circumstances is both knowledge of His Act and His foreknowledge. They’re actually the same, and so treating them as separate faculties within God is incorrect. It’s like asking if God could have knowledge of His act without knowledge of His act by using only knowledge of His act instead. It’s a bit nonsensical.