National Weather Service United States Department of Commerce

Hot in Parts of the West; Cold Blast Coming to the Central U.S.

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >

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Last Map Update: Mon, Sep 1, 2025 at 1:16:47 pm PDT

A warming trend will bring moderate HeatRisk to interior areas today. Temperatures will be above seasonal average with less relief overnight, especially at higher elevations. This brings an elevated risk of heat-related illness to those who are susceptible. Never leave anyone in an unattended vehicle!
The combination of low relative humidity and gusty onshore winds in the afternoon will bring elevated fire weather concerns to the interior mountains and hills today. Obey local burn bans, avoid using equipment that creates sparks, and make sure campfires are completely put out!
Long period SW swell will bring strong rip currents, sneaker waves, and dangerous surf to the coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, and Northern Monterey Bay from early Saturday through late Monday. Southwest-facing beaches will be the most affected. Never turn your back on the ocean!

 

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