National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday 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. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

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Last Map Update: Wed, Aug 26, 2026 at 10:38:18 pm MST

Low-grade monsoonal conditions with isolated storms across the higher terrain expected through Friday. 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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