Questions & Answers about Jak na październik jest dziś gorąco.
No, it is a statement.
Here jak does not mean how. In this sentence it is part of the expression jak na + noun, which means something like:
- for
- considering
- for something/someone like this
- given that it is ...
So Jak na październik means for October or considering it is October.
Because the sentence is not just saying when it is hot. It is making a comparison with what you would normally expect in October.
w październiku = in October
This only gives the time.jak na październik = for October / considering it is October
This adds the idea of surprise or comparison.
So the sentence is really about the weather being unusually hot by October standards.