Silverado has some pretty good views, for a place you can drink wine. I like Clos du Bois, nice people. Duckhorn has good wine, but they are not all that friendly. Peju they were nice
I like
Jack London State Park. Nice grounds, miles of trails, gives you an excuse to take Trinity Rd/Dry Creek Rd/Oakville Grade.
Weather should be good, probably will be smokey.