Iowa weather lacks popularity amongst students and residents alike. As many students mention, it lacks predictability and has all four seasons at drastic temperatures. Students will find that until winter break, they will need shorts, T-shirts, pants, jackets, sweatshirts, sandals, tennis shoes, and possibly boots and a winter coat. After break, they can probably get by without shorts, but need more winter clothes to get them through the season. Students need clothes for both cold and hot weather, including winter coats, umbrellas, and possibly boots. Jackets just don't cut it in the winter.
The highlight of Iowa State is not its weather. If a nice climate is an important factor in your choice of school, you may think of going elsewhere. The campus is beautiful, though, and there are some gorgeous days mixed in with the rain, snow, and humidity. The fall and spring especially can be nice before it gets too cold or too hot. Overall, the weather is temperamental.