Navajo
Verb
diłkʼáás
-  it (weather) is turning cold, starting to be cold
Usage notes
This verb is semantically limited to expression in the third person.
Conjugation
Paradigm: Momentaneous (Ø/si)
.
|  | 3rd person singular | 
| IMPERFECTIVE | diłkʼáás | 
| PERFECTIVE | deeskʼaaz | 
| FUTURE | didoołkʼas |