Here's the weather forecast for the 2008 Walt Disney World Marathon, which happens on Sunday, January 13, 2008. Though we are still 7 days away, the weather forecast for next Sunday is a low of 53 and a high of 80.
At least in terms of the marathon (meaning roughly 4am to 1pm), this is average for January. The average low temperature for Walt Disney World on January 13 is 51 degrees. The average high isn't as relevant since it tends to occur mid to late afternoon, but for the records the average high for January 13 is 71 degrees.