Upper Midwest Braces for Monday's Dangerous Heat Wave
A dangerous heat wave hits the Upper Midwest Monday, with afternoon heat indices of 100–110°F driven by high humidity; highs in the low to mid-90s and overnight warmth offer little relief, and extreme heat warnings/advisories are in effect. If storms develop, they could bring damaging winds but overall thunderstorm chances remain 20–30%. The heat overlies a pattern that stays hot and humid through much of the week, with periodic thunderstorm potential and the risk of heat-related illness if precautions aren’t taken.
