The trend is showing Matthew staying east of Florida and passing mid next week. You get more certainty with TS paths 3 days out, so the next 3 days or so will be very telling on what's going to happen. Regardless of where it makes landfall in the US (if it does), it Florida, it will be history by the time Oct 9th rolls around.
*disclaimer, I'm not a meteorologist nor a magician. We always travel in late August/early September, so for the past 5 years I have been watching how these storms develop and how the models predict, it's rather interesting. So I'm definitely a full fledged armchair weather person.
I recommend following Denis Phillips from ABC news in Tampa on FB and/or Mike's Weather page, also on FB. Both are very thorough in their analysis, IMO, and Denis in particular will straight out tell you when things are more uncertain than certain.