Chances of Rain Nurb 24h?

Hey guys, I have a simple, maybe even silly, question.

I'm planning for the Nürburgring 24 Hours race, and my question is whether there's any way to predict if it will rain during the race. I have to admit I'm not the best driver in the rain, so I'd need to prepare with a lot of practice haha.
That's it, is there any way to see if it's likely to rain or not?

Thanks everybody, lov u