well, not exactly blog in the future. But you can write a blog and post it at a later date or day or time. which might be the day that you can't access blogger to blog your post.
"Scheduled post publishing, which we talked about testing on Blogger in draft last month, is now live for everyone. If you set a post’s date into the future, Blogger will wait to publish until that time comes."
for more info, check out this link for more info.
