Where is the northern star tonight I don't see it, 2 nights ago it was shining brighter than ever?

If you mean Polaris, it's always in the same spot.
Depends where you live, where you see it.
Maybe there are some clouds.

I just checked, and the North Star (Polaris) is exactly in the same location and brightness that it always is: an ordinary 2nd magnitude star. Since you describe it "shining brighter" I suspect that what you are looking at is NOT the North Star. What time is this? Just before sunrise? Then it's probably the planet Venus you're looking at, in the east, not the north.

The North Star, properly known as Polaris, is far from the brightest star in the sky -- it is pointed to by the two "pointer" stars in the Big Dipper, as you point out. It could easily have been a thin cloud obscured it for you tonight. It was very clear and visible here (in northeastern Pennsylvania in the USA) while I was walking our dogs about an hour ago (11 PM here).

The North Star isn't very bright at all, so you've probably been seeing another one if you've seen something particularly bright. Sorry if I'm insulting your intelligence, but the two stars at the end of the "ladle" of the big dipper point towards Polaris some way off. If that's how you normally find it, then I can only suggest there were thin clouds in your sky. Polaris doesn't go anywhere.

sure I quite have seen perfect nights interior the fall time and in wintry climate interior the summertime season subjects are greater dark via BBQ's and stuff yet until at last wintry climate comes that greenish blue sky with the bright white stars come out with the moon

Ever watch the movie Melancholia >:) ?