If you planning to travel to National Sprint Car Hall of Fame, Knoxville, Iowa, 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 1:10 PM. The temperature feels like 37.75 with a humidity level of 80 so dress accordingly. Cloud coverage is 45 percent with visibility at 10.6 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 5 MPH. At the end of the day don’t miss the sunset at 10:45 PM.