Ok, less than omniscient.
I didn't say that either.
I am saying that omnipotent (all powerful), in my miond, means capable of doing anything that is possible.
In my mind, omniscient (all knowing) means knowing all there is to know.
If, indeed, we have free will (which I think we do, and if we do not then religion itself and this discussion are absurdly pointless) then it is simply not possible to know the future because it has not been determined yet.
Free will and strict pre-determination contradict each other.
The two co-existing is a paradox.
Paradoxes are impossible.
It is impossible to know the future.
God, even if he is omniscient and omnipotent, can not know the future.
He CAN, of course, be able to predict it fairly accurately if he is omnsicient, knows all the variables and knows us all well - but with free will, the future is open.
To say that paradoxes do not apply to God, in my view, makes omnipotent a meaningless word, because then God is entirely undefinable, therefore we can't know anything about him at all (including knowing if he is omnipotent) so it makes the discussing - and even considering - God moot.
So yes, God can be all powerful and all knowing, and still not know what the future holds.