If the forecast is looking grim, why not head to Fricktaler Museum? You'll be surprised just how many interesting facts you can uncover about days gone by here.
You'll soon find out why this Rheinfelden collection of historical artifacts is a hit with travelers. If you're looking for more to do and see here, Aquabasilea, Sole Uno, and Sole Uno Wellness-Welt are in this area as well. They won't take you long to get to from Fricktaler Museum.