With the onslaught of the first significant snow of the year, the following link is for road conditions in the state of Iowa.
Road Conditions
The link is for low bandwidth or Dialup internet connections. The following link is for Higher speed connections, such as DSL, cable etc. High Speed Road Conditions

Already this morning, Interstate 29 in western Iowa is partially covered or wet from Sioux City to the MO border. Interstate 80 is wet or partially covered west of Des Moines. If you are going to travel this afternoon, be very careful.