As well as our own Mills On The Air Special Event Station GB0JAJ this Saturday, the Downland Radio Group are at Chailey Heritage Windmill - also on the Saturday, so if that suits you better, then MSARS members have been invited to go along and take a look. It's possible to operate inside the mill itself at Chailey, and Gavin, Chris and Kevin will be operating the GB0CHW station from around 10:00am until 4:00pm.
Much like up at the Jack and Jill, apparently it can get a bit chilly there, so go prepared. Honestly, I don't understand why they have to put windmills in such awfully draughty places.
If none of that takes your fancy, then Worthing and District ARC are running GB0HSM out of High Salvington Mill, a beautifully restored post mill not dissimilar in appearance to Jill Mill on the Sunday only.
So you have no excuse for not getting involved in the various MOTA activities this weekend. The weather does genuinely look pretty good for both days, so get outside and propagate some RF.