Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

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Last Map Update: Mon, Aug 24, 2026 at 12:52:44 pm PDT

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National Weather Service Salt Lake City, UT

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Storm Chances Today

Extreme Heat Through Friday

It’ll be hot again today, with increased storm chances mainly along and southeast of I-15. The best chance will be over northwestern Arizona, but storms are also expected over the higher terrain of portions of southern Nevada and southeastern California. Gusty outflow winds, blowing dust, and lightning are the main concerns, along with brief downpours.

Overnight low temperatures will continue in the upper-80s to low-90s this week as afternoon high temperatures climb to 5 to 8 degrees above seasonal normals. Late-season heat can be very dangerous, as tourists are coming in from cooler climates and locals are exhausted from fighting the heat all summer. Stay hydrated and avoid caffeine and alcohol!

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

NWS Forecast Office Las Vegas, NV