The Southwest Washington Fair is an agricultural fair in Chehalis, Washington, at Fairgrounds. The 2026 event takes place Aug 15–22, 2026. It holds a 4.3-star rating from 845 Google reviews. Southwest Washington Fair will be held on August 15-22, 2026. It will feature tractor pull, kids show, apple pie contest, demolition derby, motocross, antique/classic car show, harness racing, live entertainment, livestock shows and sale, 4-H shows and exhibits, vendors, fair food and more.
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