The
Himawari-8 satellite imagery viewer lets you check the cloud situation on the day (and, sensibly, adjacent dates) for the last 10 years. Enter date in calendar at the top and start assessing.
I'm 1km from the centreline of this one, so I'm not inclided to travel very far at all even if a trip to clearer skies in NT or WA would be pretty easy - though the weather around eclipse date hasn't been too shabby for us as per the imagery mentioned above. To have a TSE visit your own home is too cool to ignore.