National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

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Last Map Update: Wed, Aug 26, 2026 at 3:30:13 am MST

Hot and drier conditions return for much of the week with isolated storms across the higher terrain. Increased monsoon activity develops over the weekend and into next week.
Extreme Heat Warnings are in effect for Wednesday through Friday for the lower elevations of the Grand Canyon and Yavapai County, for areas below 4000 feet.

 

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