Brief soapbox moment considering the current (but probably inaccurate) forecast for marathon day:
KEEP YOUR SPONGE. If it gets as warm as they are guessing, there is a good chance that they will be handing out wet sponges as we exit AK and turn onto Western Way. My first year of running at Disney (2022) it was like a scene from a zombie movie with people walking down the highway, yellow sponges littering the road. You can RE-WET your sponge at water stops. Stick it in your hat, in your sports bra (monitor your skin as this could cause new or unexpected chafing), in your vest, your shorts. They also had ice bags between Blizzard Beach and HS. YYMV with these, but on the off-chance that it does get hot these are some things to keep an eye out for.