If you planning to travel to Mercer Arboretum and Botanic Gardens, Houston, 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 1:14 PM. The temperature feels like 49 with a humidity level of 74 so dress accordingly. Cloud coverage is 7 percent with visibility at 13.5 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 11:28 PM.