Extreme heat continues to bring dangerous temperatures and high humidity to the Northwest and southern Plains.  

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U.S. heat alerts

Heat alerts across the U.S. (Credit: Fox News)

Heat indices will surpass 100 degrees for many big cities, where record highs will be possible.  

Midwest rain forecast

Rain forecast over the Ohio and Mid-Mississippi Valleys (Credit: Fox News)

Stormy conditions will persist along a front draped over the Ohio and mid-Mississippi valleys. 

Southwest rain

Rain forecast across the Southwest (Credit: Fox News)

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Heavy rain across the Southwest is helping the drought; too much of a good thing is going to bring flash flooding to some areas.