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The heat will be the biggest story this week with dangerous temperatures shattering records from the upper Midwest down into the Southeast.
NEW ORLEANS WEATHER: DRIVERS STUCK AFTER FLOODING FROM STORMS
Excessive heat watches, warnings and advisories are up for nearly a third of the U.S., lasting through the week.
Temperatures will also soar across California and the Southwest on Tuesday.
Strong-to-severe thunderstorms could impact portions of the upper Midwest, the Ohio Valley and the mid-Atlantic region.
Meanwhile, it’s cold and wet weather for the Northwest and northern Rockies.
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Dry heat and gusty winds will produce another day of elevated-to-critical fire weather conditions for the Southwest and High Plains.