You should all just assume it'll be outside, as that is always going to be main plan!
Weather forecasts do look fine...if not perfect currently
We've only ever planned to move it indoors as an absolute last resort backup plan if it's REALLY wet. And the main point of mentioning it is that whatever the weather we will have racing so it won't be a wasted journey for anyone.
We'll check the forecast officially on Saturday afternoon before we setup the track, but see no reason currently to go inside.