National Weather Service United States Department of Commerce

Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

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Last Map Update: Sun, Jul 26, 2026 at 7:22:24 am PDT

Temperatures increase over the coming days, resulting in dangerous heat across the Mojave Desert Thursday through Monday. Anomalously warm overnight lows will greatly limit overnight relief while high temperatures run around 5 degrees above normal.
We have high confidence that temperatures will remain above normal through the week. However, uncertainty remains regarding just how much above normal temperatures will be, especially later this week as high pressure builds over the area causing things to heat back up.