Beyonce Bea scored 15 of her 17 points in the second half, including the go-ahead free throws in the final 30 seconds.
Skyview tied the game 46-46 with a 3-pointer with 33 seconds to play before Bea got to the line to put Washougal up 48-46.
Skyview had a drive to the basket to tie the game in the closing seconds, but Bea blocked the shot. She sank two more free throws for the final margin.
Washougal was won six straight and will host Mark Morris on Tuesday.
WASHOUGAL 50, SKYVIEW 46
WASHOUGAL — Kiara Cross 0, Alexis Maniscalco 0, Maggie Hungerford 8, Beyonce Bea 16, Ashley Gibbons 5, McKinley Stotts 10, Grace Graham 0, Emilee Smart 0, Skylar Bea 8, Tiana Barnett 3. Totals 18 (4) 10-16 50.