Areas of Extreme Heat and Fire Weather in the Northwest U.S.; Heavy Rain in the West and South-central U.S.

Extreme heat will continue in the interior Northwest into midweek before finally waning. Hot temperatures, dry, gusty winds, and isolated dry thunderstorms will bring critical fire weather. Heavy rain and thunderstorms are expected across portions of the Great Basin, Rockies, and central/southern Plains. An atmospheric river will bring heavy rain and strong winds to southwest Alaska. Read More >

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Last Map Update: Tue, Aug 26, 2025 at 5:18:20 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

Small Craft Advisory

Flood Watch

Highs Temps This Week

Thunderstorms Today

A look at the high temperatures for cities around the area. We begin a gradual cooldown today and continues through the remainder of the week.

Afternoon and evening thunderstorms are in the forecast today, Tuesday August 26, 2025. 20-40% chance across the Sierra, Southern Cascades, and Coastal Range with the main threats being lightning strikes, small hail, brief heavy rain, gusty erratic winds, and the potential for new fire starts. When thunder roars head indoors.