Seattle, WA – A heat wave is set to affect the Pacific Northwest and Northern California during the week of August 1-7, 2025, as above-normal temperatures are predicted for millions of residents across Oregon, Washington, and California.
Heat Wave Forecast
According to the National Weather Service’s 8-14 Day Temperature Outlook, large sections of the West Coast, particularly western Washington, Oregon, and northern California, are highlighted in orange and red, indicating a high chance of above-average heat.
In some areas, the probability of surpassing typical summer temperatures exceeds 60%, raising concerns about the heat-sensitive population and wildfire risks.
Heat Across the Region
This temperature surge contrasts with cooler conditions expected in much of the U.S. interior, making the Pacific states a zone of persistent and intense heat. Daytime highs are expected to reach the 90s in lower elevations, with some areas of California’s Central Valley potentially seeing triple digits.
This prolonged heat could stress power grids, challenge outdoor workers, and increase wildfire risk, especially with below-normal precipitation forecasted in affected areas.
Health and Safety Recommendations
Public health officials advise residents to take precautions, such as staying hydrated, checking on vulnerable neighbors, and avoiding strenuous outdoor activities during peak heat hours. Emergency cooling centers may be activated in major cities like Seattle, Portland, and Sacramento.
Stay Informed
The National Weather Service recommends monitoring local alerts and advisories, as conditions may change quickly during the heat wave. Residents should stay informed throughout the week and be prepared for rapid shifts in weather.
