Smoke from Canadian wildfires will contribute to poor air quality throughout Michigan on Wednesday and Thursday.

An upper-level ridge of high pressure will control the forecast all the way through the end of the week, but as a suddenly flow starts to move in by the time we get to Friday and looking ahead into the upcoming weekend, we will dial-in more summer heat, and more humidity into the forecast.

Extreme heat warnings are remaining in place for parts of southeast California, southern Nevada and much of Arizona where high temperatures between 108 and 118 degrees are possible through Friday. Record high temperatures are also possible for cities like Phoenix and Tucson through Thursday, including Albuquerque through Friday.