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 48 with a humidity level of 47 so dress accordingly. Cloud coverage is 43 percent with visibility at 14 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 10 MPH. At the end of the day don’t miss the sunset at 11:57 PM.