Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

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Last Map Update: Wed, Jul 29, 2026 at 6:38:47 pm PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Small Craft Advisory

Beach Hazards Statement

Hot Weekend Ahead

High pressure building over central California into the weekend will lead to warmer temperatures across the region, especially in the Mojave Desert where highs will top 110 degrees. This image shows the temperature range on Saturday August 1st. There is a 90% probability to exceed the lower value, but a 10% probability to exceed the higher value. For example, there is a 90% probability of Fresno having a high temperatures over 101 degrees, but only a 10% probability of Fresno has a temperature over 106 degrees.

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Extreme Heat and Excessive Rainfall Today

NWS Forecast Office Hanford, CA