Chilly Peak is a mountain summit located in the Entiat Mountains, a sub-range of the North Cascades, in Chelan County of Washington state. It ranks as 192nd of Washington's highest 200 peaks. Its nearest higher neighbor is Ice Box, to the northwest, and Spectacle Buttes are set to the north-northeast. Chilly Peak is situated south of Ice Lakes in the Okanogan-Wenatchee National Forest. Precipitation runoff from the mountain drains east into Ice Creek which is a tributary of the Entiat River, or west into Rock Creek, a tributary of the Chiwawa River.