If you planning to travel to Siesta Key Marina, Siesta Key, Florida, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 12:13 PM. The temperature feels like 73.55000000000001 with a humidity level of 88 so dress accordingly. Cloud coverage is 22 percent with visibility at 12 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 10 MPH. At the end of the day don’t miss the sunset at 10:39 PM.