Summer Outlook Update: North Bakes, South Heat in Check Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook Update: North Bakes, South Heat in Check Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier Summer Outlook: It'll Be Hot in the Nation's Northern Tier