Disney have confirmed to us that Typhoon Lagoon will remain closed today due to continuing cold temperatures in the area. The water park was closed yesterday as well.
As a reminder, Blizzard Beach is also currently closed for it's annual refurbishment.
Resort pools may be unaffected, and usually are, however Disney did reduce the operating hours earlier this week due to cold weather, and allowed the pools to be open from midday to 6:00pm.