cloudish

From cloud +‎ -ish.

cloudish (comparative more cloudish, superlative most cloudish)

1. Resembling a cloud or clouds; cloudly; cloudlike.
   • 2010, Barbara Kingsolver, The Lacuna: A Novel:

     The boys move in cloudish groups, like schools of fish on the reef.

2. (of weather) Somewhat cloudy.
   • 2001, Ann Rule, Empty Promises:

     I just remember being on the trail and the sun seemed to be out—sort of cloudish, maybe somewhere around three or four in the afternoon.”

• hazy
• nebulous