Canadian wildfire smoke will significantly impact air quality across Michigan on Friday, with unhealthy conditions expected for sensitive groups and potential scattered thunderstorms this weekend.

Minnesotans are inhaling another plume of smoke from Canada this week, and an attempt to blame Canada's handling of wildfires is being met with eye-rolls north of the border. Why it matters: Experts say smoky summers are likely the new normal in Minnesota and many parts of North America unaccustomed to dealing with the haze as climate change turns the continent's forests into tinderboxes.

The particles can trigger asthma, heart attacks, strokes, and other health concerns. Particle pollution is associated with certain cancers, dementia, and adverse pregnancy and birth outcomes.

Overnight showers and storms have largely remained south of Wisconsin. Cloud cover is draped over much of the state and will hover above for much of the day.

The biggest impact smoke has on weather is air temperature. The smoke in the air can reflect incoming sunlight back into space, leading to cooler temperatures. The amount of cooling is related to the thickness of the smoke in the air, which can also impact the amount of thunderstorm energy that can build up during the day.

Utah will be caught between a high-pressure area to the east and a low-pressure system to the west, which will increase fire risks across the region.

Friday's air will be unhealthy for everyone, so please try to limit your time outdoors! Heat and humidity will return with a vengeance this weekend.

Scientists are concerned the smoke from wildfires in Manitoba could be even more toxic than usual, saying more research needs to be done on the kind of pollutants that are being released into the air.