If you planning to travel to Museums of Port Isabel, Port Isabel, 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 68.35 with a humidity level of 56 so dress accordingly. Cloud coverage is 3 percent with visibility at 14.7 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 11:36 PM.