Metro Phoenix and swaths of Phoenix were under a freeze warning through Wednesday. Here's how cold it could get, maps of affected areas and more.

Most of the Phoenix area will be impacted, and meteorologists warned residents to take action before temperatures drop.

The high temperature in Phoenix on Wednesday will be 67 degrees. A Freeze Warning is in effect for the Valley through 9 a.m. on Jan. 22, as overnight temperatures drop into the 30s. As a reminder, pets should be indoors and sensitive plants may need cover.

The coldest day so far of the winter season is expected to come Wednesday, according to the National Weather Service office in Phoenix.

Much of Arizona is under a freeze warning for the weekend. Here's how to protect your pipes and home during the cold weather, according to experts.