If you planning to travel to Lavaca Historical Museum, Hallettsville, 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 1:02 PM. The temperature feels like 56.8 with a humidity level of 53 so dress accordingly. Cloud coverage is 74 percent with visibility at 14.9 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling north at a speed of 18 MPH. At the end of the day don’t miss the sunset at 11:29 PM.