Disneyland Weather Report for May 25 from @WDW_Weather
Patchy fog to start the day with gradual clearing for the afternoon - high temperatures reaching somewhere into the mid 70s. Rinse - repeat. That's about it through the end of the week.
It may be a little bit cooler tomorrow and as we head towards Memorial Day - a disturbance may bring some more clouds. As it stands right now though it should warm up a bit for the official Memorial Day holiday.