Hiked main trail to summit over 11/2-3. A few patches of ice below Trail Camp, easily navigated. However, above Trail Camp trail is almost entirely snow covered. Microspikes & poles provided enough safety. I wouldn't go up without them.
Overnight temp at Trail Camp was 17. Moderate winds. Summit temps were in the teens with wind chill. Sunday was very blustery, but crystal clear.
Lake at Trail Camp was frozen over, but a small hole allowed for filtering water. Don't think it will last much longer. No signs of bears or marmots. Overall, a great trip!