The dry weather is good news for Halloween festivities, as trick-or-treaters across Washington can enjoy their evening without worrying about rain. However, the cooler temperatures, especially in Spokane, may require warm costumes or additional layers to stay comfortable. The slight breeze in the evening could make it feel even chillier, so residents are advised to dress accordingly. While the risk of rain is minimal, those in Eastern Washington and Idaho should remain prepared for a brief, light drizzle, as there is a small chance of precipitation.