|Appears in||Chapter 2|
|Tagline||“here come the windmills”|
Airflow to the right
|Previous level||Fly Away Little Ones|
|Next level||Welcoming Unit|
|“||The windmills were supposed to be a source of cheap clean energy to power the entire world. But they weren't enough. And a different source of energy had to be found.||”|
—the Sign Painter
Blustery Day is a level in the video game World of Goo. It is the third level of Chapter 2. In this level, the player must use Water Goo and Balloon Goo to build a structure around a giant windmill with the wind blowing to the right. This level features a vivid visual style not found in many other levels of the game, with thick black trees bent over in the wind and a deep red background.