Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Plains to the Upper Midwest

A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S and linger through much of the work week. Numerous daily record highs and warm lows are likely. Severe thunderstorms are possible from the southern Plains through the Upper Mississippi Valley. Fire weather concerns are expected to persist across the Four Corners region. Read More >

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Last Map Update: Sun, Jun 22, 2025 at 3:02:20 pm PDT

Watches, Warnings & Advisories

National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

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National Weather Service NWS Flagstaff, AZ

National Weather Service Los Angeles, CA

Frost Advisory

Gradual Return to Normal Temperatures

High temperatures today will be around 10 to 15 degrees cooler than normal for late June. We will see temperatures gradually warm up during the first half of the week, with temperatures nearing normal by Wednesday.

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Plains to the Upper Midwest

NWS Forecast Office Las Vegas, NV