Fighfighters are out facing their fifth day against an out-of-control fire which claimed two lives in the town on Yarloop on Friday.
Temperatures are dropping and winds are easing but the day will still prove difficult, ABC reports.
The bushfire emergency warning remains for east of Waroona, Hamel, Cookernup, Yarloop, Harvey and surrounding areas in the shires of Harvey and Waroona.
The fire began with a lightning strike on Wednesday and now has a perimeter of more than 226 kilometres.
More than 140 properties have been lost in the Waroona fire so far, and a 128 homes.
The two bodies were found in burnt-out houses in Yarloop on Saturday, and one person remains missing.
Residents have spent their second night at the Pinjarra evacuation centre, and some are frustrated that they couldn't return to their towns yesterday, ABC reports.
Residents from Waroona and surrounding area listen to a community briefing at the Pinjarra fire evacuation centre (AAP)
The Bureau of Meteorology has upgraded the fire danger rating from severe to extreme for parts of the Goldfields Midlands today due to a change in weather conditions.
A total fire ban has been put in place for Perth Metropolitan, South West, Lower South West and parts of the Goldfields Midlands for today.