National Weather Service United States Department of Commerce
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Last Map Update: Fri, Aug 28, 2026 at 3:46:32 pm PDT

There is a 20-30% chance of thunderstorms on Saturday over the North Cascades, Okanogan and Methow Valleys, Okanogan Highlands, and over far NE Washington. The main concern with storms will be occasional lightning, brief downpours, small hail, and gusty outflow winds.
Air Quality Conditions across the Inland Northwest can be monitored at fire.airnow.gov.
As September arrives, an amplified weather pattern is likely to setup featuring cool and showery weather across the northwest, with above normal temperatures in the central and eastern US. While the details regarding amounts and locations of precipitation are unclear, there are elevated odds of cooler and wetter than normal conditions.

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