If you planning to travel to Usina Beach, St. Augustine, 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 11:44 AM. The temperature feels like 81.95 with a humidity level of 90 so dress accordingly. Cloud coverage is 52 percent with visibility at 7.8 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 10 MPH. At the end of the day don’t miss the sunset at 10:33 PM.