Hello there, Josie, and happy haunts to you! We are thrilled you've stopped by planDisney with your question for us.
I am so excited that you will be visiting Disneyland soon to experience Halloween time. It's one of the best times to visit and enjoy all the fun. You are correct that
Space Mountain is currently undergoing refurbishments. There has been no announcement that it is for a fall update or limited-time overlay. I like to say anything is possible as far as magic and miracles at Disneyland, so there could be a possibility that an attraction that is down for refurbishment ends up opening back up ahead of schedule, but it looks like you will be arriving more than a week before it is scheduled to reopen. I always recommend looking at the
Entertainment Schedule to see the attractions that are under refurbishment or that are currently closed.
I know it's a bummer to know an attraction isn't available when you are really looking forward to it, but there is so much to do right now during Halloween time. There are attraction overlays, Mickey and friends in their best costumes,
limited-time treats, decor, and more. If you are headed to Disney California Adventure Park, don't skip out on seeing the decor throughout Radiator Screams! This is my favorite decor all throughout Disneyland Resort.
Josie, I know despite a little disappointment you are sure to have a magical day with your friends. Be sure to stop by again with any other questions you have for us!
Carrie