Scattered severe thunderstorms are forecast across the Inland Northwest on Thursday, May 28, 2026, with the most active weather expected between 2 PM and midnight. Areas within the yellow "Slight Risk" zone, including Lewiston, Pullman, and Moses Lake, could experience large hail up to 1.5 inches, damaging winds of 70+ mph, heavy downpours, and frequent lightning. The storms will generally track from south to north, initiating near the lower Washington-Idaho borders around 2 PM and reaching the northernmost regions between 7 PM and midnight.
High temperatures on Thursday will warm into the upper 80s to mid 90s. This will result in moderate HeatRisk for portions of North Central and Northeast Washington into the Idaho Panhandle, as well as the Lewiston-Clarkston Valley. This level of heat affects most individuals sensitive to heat, especially those without effecting cooling and/or adequate hydration.
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