When is it OK to use a fan? How much water should you drink? What to know to make it through the record-setting heat. A child plays ball near a fire hydrant during the start of a heat wave in Milwaukee, Wis.Angela Peterson / Milwaukee Journal Sentinel / USA Today Network via ImagnJuly 2, 2026, 2:02 PM EDTBy Lily AlvinoSweltering conditions will hit the Midwest and much of the East Coast through the July Fourth weekend, with temperatures expected to reach at least 100 degrees. Just a moment.We are getting your experience ready.