View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Minnesota, United States throughout the world ...

Wisconsin, Minnesota and Indiana all have air quality alerts, while Chicago's air quality currently ranks in the "unhealthy for sensitive groups" category.

The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat indices reaching 100 by Wednesday.

Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” ...

High humidity levels, summer heat and long days will combine to produce conditions favorable for drenching thunderstorms ...

Unhealthy air has invaded Minnesota, Wisconsin and North Dakota early this week as a new round of wildfire smoke from Canada ...

Canadian wildfire smoke descended into the Upper Midwest again on Monday, heightening the risk of physical health impacts.

Firefighters are working the uncontained Green Fire in the Shasta-Trinity forest as 110-degree heatwave hits the Redding area. Here's what we know.

Meteorologist Sven Sundgaard has a look cooler temps with rain wrapping up Wednesday. Showers return Friday night before heat ...

The National Weather Service has issued a Severe Thunderstorm Watch until 10 p.m. Tuesday that includes parts of the north ...

A Forecast First Alert remains in place this evening as strong to severe thunderstorms continue developing across Minnesota. These storms are mainly baseline severe with damaging winds and hail as the ...

Heat index values are expected in the middle to upper 90s in the metro this afternoon, and severe storms are possible later ...