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 1:22 PM. The temperature feels like 71.35 with a humidity level of 85 so dress accordingly. Cloud coverage is 44 percent with visibility at 12.2 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:38 PM.