Windy Peak is an mountain summit located in Okanogan County in Washington state. It is part of the Okanogan Range which is a sub-range of the North Cascades and Cascade Range. The mountain is situated south of the Canada-United States border, on the east side of the Cascade crest, in the Pasayten Wilderness, on land managed by Okanogan National Forest. The nearest higher peak is Haystack Mountain, to the northwest in Canada. Precipitation runoff from Windy Peak drains into tributaries of the Methow River and Similkameen River.