If you planning to travel to Brazos Island State Park, Brownsville, 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 12:50 PM. The temperature feels like 68.85 with a humidity level of 56 so dress accordingly. Cloud coverage is 3 percent with visibility at 14.9 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling east-northeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 11:36 PM.