Record Heat Remains in Place This Week; Severe Thunderstorms Possible Thursday

Record warmth will persist across portions of California, the Southwest U.S., the central Great Basin and return back to areas of the central/southern Plains and mid-lower Mississippi Valley this week. Over 200 new record high temperatures are forecast. Severe thunderstorms are being outlooked on Thursday over the Midwest. Read More >

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Last Map Update: Mon, Mar 23, 2026 at 12:26:20 pm PDT

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National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Heat Advisory

Small Craft Advisory

East Bay NWR station off air

The NOAA Weather Radio station in Contra Costa County, WNG655 on 162.425 MHz, is down until further notice due to a communications issue with technicians looking into the problem. During the outage, alternate NWR stations may be available on 162.400 MHz from San Francisco or 162.550 MHz from Monterey. We apologize for the inconvenience.