we are coming from Arizona so we also freeze below 70 degrees! lol we usually layer our clothing because mornings and nights are cooler than afternoons!I live here and can say as the PP stated, we FL people freeze below 70 degrees. Since you are in the mid west and have had a pretty cold winter so far this year, think of our Jan as your end of March beginning of April. Usually temps during the day are some where in the 50's - 60's with lows in the 40's to upper 30's. We have had a VERY warm winter so far and it is predicted to be wetter than normal so I'd pack a poncho or two just in case. Normally Jan is pretty dry but the weather is a bit crazy this year.
Temps next week are going to be in the 70's during the day so you might even get to swim! pools are heated at WDW but you won't find us FL people in them.
There are pay lockers in each park if you want to store a jacket. I've done this myself and it was WELL worth it.
Not OP, but thanks so much for this info! I am also from upstate NY. My sister lived here for 30 years, moved to north Carolina, has lived there for 12 years. The amount of sweatshirts she owns is crazy! lol. Can't wait to escape the winter freeze! Last week of January can't come soon enough!Depends on where you're coming from and how hot/cold you generally are...
My family went down the first week of February for 18 years...but we come from Upstate NY and usually escape snow and brutal cold.
The 65-70 degree weather felt like spring/summer to us and we wore shorts and t-shirts all day and went swimming in the afternoons. However, as you guessed, you definitely need a coat in the morning and evening. You'll see some Florida residents in heavy coats and mittens though. We always laughed.
The amount of pictures I have with a jacket tied around my waist in front of MK and Epcot is slightly ridiculous. Definitely bring a pair of pants too... maybe a few pairs.