Portland, OR – The Pacific Northwest is bracing for a notably wetter and cooler stretch from October 11–17, according to the NOAA Climate Prediction Center’s 8–14 Day Outlook released October 3.
NOAA forecasters project a 70–80% probability of above-normal precipitation across Washington, Oregon, and northern Idaho, with multiple Pacific storm systems expected to move inland next week. These systems will bring periods of steady rain, gusty coastal winds, and mountain snow to the Cascades.
Temperatures are forecast to run below seasonal averages, especially across western Washington and Oregon, where daytime highs may stay in the 50s and 60s. Snow levels could drop to around 5,000–6,000 feet, signaling one of the first measurable snow events of the fall for higher elevations.
Forecasters say this marks a seasonal shift toward a more active fall pattern, with moisture continuing to feed inland from the Pacific. Eastern parts of the region—including Spokane and Boise—may see lighter rainfall totals but still trend cooler overall.
Travelers and outdoor enthusiasts should prepare for slick roads, reduced visibility, and colder mountain passes through mid-October.
