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 12:53 PM. The temperature feels like 76.65 with a humidity level of 68 so dress accordingly. Cloud coverage is 15 percent with visibility at 14.8 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 15 MPH. At the end of the day don’t miss the sunset at 11:36 PM.