2010-11: Ty Edmonds played for the Winnipeg Warriors bantam AAA team. He was selected by Prince George in the ninth round (186th overall) of the 2011 WHL Bantam Draft.
2011-12: Edmonds skated for the midget AAA Winnipeg Wild in Manitoba. Edmonds was 22-1 with a 1.78 goals against and .916 save percentage in 23 regular season games. The Wild dominated the Eastern Division; finishing 41-3 and capturing the MMHL playoff title before finishing third in the Telus Cup West Regional. Splitting the goaltending with Alex Moodie, Edmonds won all five of his MMHL playoff starts with 1 shutout and a 1.04 goals against and .955 save percentage. He played for Team Manitoba in the 2011 Western Canada U16 Challenge Cup.
2012-13: Edmonds made his WHL debut – appearing in one game with Prince George — and played junior A hockey for the MJHL's Virden Oil Capitals as a 16-year-old. He was credited with the win in his only appearance – stopping 18 of 19 shots in two periods against the Vancouver Giants. Edmonds split the goaltending duties for the Capitals with Kyler Beckett; finishing 8-15 with a 3.46 goals against and .887 save percentage. He represented Canada Western in the 2013 U17 World Hockey Challenge; posting a 4.66 goals against and .865 save percentage in three games.
2013-14: Edmonds joined Prince George for his first full WHL season — splitting time with Brett Zarowny — and was selected to play for Team Cherry in the 2014 CHL/NHL Top Prospects Game.