If you planning to travel to Six Flags Fiesta Texas, San Antonio, Texas, 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 11:33 AM. The temperature feels like 86.35 with a humidity level of 68 so dress accordingly. Cloud coverage is 7 percent with visibility at 12.7 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 12 MPH. At the end of the day don’t miss the sunset at 1:36 AM.