Seattle

Heat Advisory Issued for Seattle and Surrounding Areas with Temperatures Soaring into the 90s

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Published on August 12, 2025
Heat Advisory Issued for Seattle and Surrounding Areas with Temperatures Soaring into the 90sSource: http://pixabay.com/en/users/katdavis733-298996/, CC0, via Wikimedia Commons

The National Weather Service in Seattle has issued a heat advisory for much of northwest and west central Washington, effective until 10 PM PDT this evening. With an expected high in the upper 80s to mid-90s and warm overnight lows remaining in the 60s, the advisory indicates a moderate risk of heat-related illness. Residents should expect clear skies today with temperatures peaking near 88 degrees and northeast winds picking up in the afternoon, according to NWS Seattle's latest forecast.

In addition to the high daytime temperatures, the National Weather Service warns of "warm overnight low temperatures in the 60s," which could further exacerbate heat-related symptoms. The areas affected include the Foothills and Valleys of the North Cascades, Olympia and Southern Puget Sound, and the city of Seattle proper, among others. The NWS advises residents to "Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors." The advisory underscores that young children and pets should "never be left unattended in vehicles under any circumstances."

Looking ahead to the rest of the week, Seattle residents can expect mostly sunny conditions with a high near 77 degrees on Wednesday and some cloudiness at night. However, by the end of the week, a shift will bring a 50 percent chance of rain on Thursday night, escalating to rain and an 80% chance of precipitation by Friday. Staying updated with the weather's development is crucial as the week progresses.