Try wwwa.AccuWeather.com
It gives 15 days in advance... but the temps are dropping for when we are there. from 80s to 70s now and about 73 on Saturday that was going to be a pool day! DH says it is too early to check anyway. That is the downside of Florida. You can't count on the weather in Feb/March. Last year we were in Antigua - great hot weather with tropical breezes. Loved it.... but Florida still becons! Deb