Cool pattern to cover much of the Heartland

A relentless heat wave will persist for the remainder of the week in the Northwest, with hot weather gradually expanding to cover most areas west of the Rockies. Wildfire smoke trapped by stagnant atmospheric conditions will maintain poor air quality in much of the Northwest. Meanwhile, monsoon-related showers will be most numerous across the central and southern Rockies, where 5-day rainfall totals could reach 1 to 3 inches. Similar totals can be expected on the central and southern Plains, but the drought-stricken northern Plains should receive less than an inch. Elsewhere, cool weather will continue in the central and eastern U.S., although mostly dry weather in the Midwest will contrast with periods of heavy rain—locally totaling 2 to 4 inches—in parts of the South and East.

Looking ahead, the 6- to 10-day outlook calls for the likelihood of below-normal temperatures across a broad section of the country, including most areas between the Rockies and the Appalachians. Meanwhile, warmer-than-normal weather will be limited to the Far West, as well as Florida, southern Texas, and areas along the Atlantic Seaboard. Meanwhile, near- to above-normal rainfall across most of the U.S. will contrast with drier-than-normal weather in a small area across the nation’s northern tier, from Montana to Lake Superior.

NOAA’s 6- to 10- Day Outlook

NOAA’s 8- to 14- Day Outlook

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