Lucile is an unincorporated community in Idaho County, Idaho, United States. Lucile is located on the east bank of the Salmon River and U.S. Route 95 8 miles north of Riggins. Lucile has a post office with ZIP code 83542.The climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. According to the Köppen Climate Classification system, Lucile has a marine west coast climate, abbreviated "Cfb" on climate maps.