Seattle, WA – A heat wave is forecast to grip the Pacific Northwest and Northern California during the week of August 1-7, 2025, as forecasters predict above-normal temperatures for millions across Oregon, Washington, and California.
According to the National Weather Service’s 8-14 Day Temperature Outlook issued Thursday, large sections of the West Coast — particularly western Washington, Oregon, and northern California — are highlighted in orange and red, denoting a high probability of above-average heat. The probability of exceeding typical summer temperatures in some areas exceeds 60%, raising concerns for heat-sensitive populations and wildfire risk.
This surge in temperatures comes as much of the nation’s interior sees cooler conditions, making the Pacific states stand out as a zone of persistent and possibly intense heat. Daytime highs are expected to reach well into the 90s in lower elevations, with triple digits possible in parts of California’s Central Valley. The prolonged heat could stress power grids, challenge outdoor workers, and heighten the risk for wildfires, especially as precipitation is forecast to remain near or below normal in several affected areas…