National Weather Service United States Department of Commerce

Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Jul 23, 2026 at 1:08:35 pm MST

Hotter and somewhat drier weather is expected through Saturday, with storms focused mainly over the higher terrain and generally dry at lower elevations. Monsoon moisture is expected to increase again from the southeast early next week.
Very hot temperatures are expected over the lower elevations of the Grand Canyon as well as Marble/Glen Canyons into the weekend. An Extreme Heat Warning has been issued from Friday through Sunday in these areas. Temperatures may reach as high as 114 degrees at Phantom Ranch!

 

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