 The western border consists of the city of Tukwila, and finally the unincorporated King County community West Hill and Lake Washington to the northwest.Renton has a warm-summer mediterranean climate (Köppen "Csb") with warm and dry summers mixed with cloudy, wet and cool winters, with a precipitation regime typical of the Pacific Northwest.Being located in a partial rain shadow and shielded from the coastal summers, Renton has more of a climate influenced by the interior than many other areas nearby.