Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Aug 26, 2026 at 7:16:39 am PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Red Flag Warning

Heat Advisory

Small Craft Advisory

Fire Weather Watch

Air Quality Alert

Elevated Fire Weather Conditions

Breezy at times

Elevated fire weather concerns today and Thursday for the northern Sacramento Valley, northern San Joaquin Valley, and northeast Sierra foothills due to breezy winds combined with low daytime humidity. Be sure to practice fire safety and check the forecast at weather.gov/sacramento