Fishing remains consistent for both trout and bass at Prosser Creek Reservoir. Surface temps are in the mid-60s°F, and levels are about 85% full. Sunrise and sunset bring steady action for shore anglers near the dam using worms, eggs, or PowerBait. Trollers are finding success at 50–70 feet with Rapalas. Fly anglers should target the Alder Creek inlet with streamers, midges, and callibaetis.