looks like/as if

Yes, and in fact, I'd be more likely to say simply - 'Looks like rain' -meaning that it looks like it will rain soon.
(I'm American)

Thanks, Aidan.

I would like to hear the views of other members.

That's understandable- you're welcome.

Here in Britain, the phrases are interchangeable (in spoken English), though the second is more grammatical (for written English).

But I think in writing that, I'm being a bit "picky".

Thanks, McTag.