Official National Weather Service forecasts for South Bend and Michiana — five counties along the Indiana Toll Road, from South Bend, Mishawaka and Notre Dame east through Elkhart and Goshen, and south to Plymouth, Rochester and Wabash.
Every Indiana region shares one system — the same maps, the same live radar, the same climate record. Michiana is the snowiest corner of Indiana and the reason is 60 miles of open Lake Michigan to the northwest. When the wind comes off it, the bands set up over St. Joseph and Elkhart counties and stay there — South Bend measures its winters against Buffalo, not Indianapolis. The Toll Road closes for it most years.