Could you tell me if it is correct and natural to use the present continuous after hope to refer to the future? For example:
I hope it's not raining when we go out this time tomorrow.
I've only seen the present simple or future simple used to refer to the future.
That is perfectly normal.
The present continuous can always refer to future events, especially they are a direct consequence of the present situation and certain to occur: It is rather like the "going to" future:
I'm playing tennis tomorrow (because the court is booked and its in my diary).
With "hope" the present tense often refers to future events. "
I hope you pass your exam.
If you are hoping for something that will take some time, then present continuous is fine:
I hope I'm leading the parade tomorrow. Coach said he'd pick a leader tonight.
Your example is very natural, with "raining" functioning almost like an adjective to describe the weather.
