If you planning to travel to Pioneer Hi-Bred Headquarters, Johnston, 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 11:05 AM. The temperature feels like 59.800000000000004 with a humidity level of 59 so dress accordingly. Cloud coverage is 7 percent with visibility at 13.7 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 5 MPH. At the end of the day don’t miss the sunset at 1:16 AM.