Need to cool off during the heat? Head to the Gleason Family YMCA, which is opening its air-conditioned lobby to everyone for free from noon to close on Saturday and Sunday to make sure everyone has a safe place to be during the heatwave. Check-in at the Welcome Center. Non-members must show a valid ID. The YMCA is located at 33 Charge Pond Road and will be open until 5 on Saturday and until 2 on Sunday. For more information, go to www.YMCASC.org.