Traveling to Arneson River Theatre, San Antonio, Texas? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 11:33 AM and don’t miss the sunset at 1:30 AM. Today’s winds are traveling east-southeast at a speed of 7 MPH. The temperature feels like 87 with a humidity level of 57. Cloud coverage is 33 percent with 20.3 percent visibility. Today’s UV index is 10 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.