Head in the Clouds
Keeping your head in the clouds is quite easy these days. With the high humidity levels in the atmosphere and the relatively low temperatures leads to ground based clouds. This cloud layer is also more commonly called fog.
The formation of fog generally denotes a stable environment. Little of the sun’s energy reaches the earth’s surface preventing the warming of the atmosphere. Without the surface warming there is very little mixing in the atmosphere so the fog persists.
So you do not need an airplane to be in a cloud, just go outside.