Just a quick conversion for those not too familiar with C: 25C = 77F 30C = 86F
It looks to me that by that graphic that the storm has entirely low-mid 80's in its path, with a burst of warm 85-86F temps just off shore.
(ps mods: why can't I used ° for degree or other &stuff; codes to get symbols on this forum? The problem is quite symple. HTMLENTITIES command in your PHP is converting & to & automatically, so what you need is some way to override it. )