Associated Press (excerpts):  St. Louis, Milwaukee, Minneapolis, Chicago and several other Midwest cities already have broken heat records this week or are on the verge of doing so. Even nighttime low temperatures are setting record highs and some residents have no means of relief day or night.

The National Weather Service said the record-breaking heat that has baked the nation's midsection for several days was slowly moving into the mid-Atlantic states and Northeast. Excessive-heat warn...

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