August 26, 2009 8:06 pm MSI Gets Heart Transplant It’s out with the old and in with a new interactive heart model at Chicago’s Museum of Science and Industry. Local 2:27 CHICAGO'S FORECAST: Rain followed by cooler temps 2:22 Chicago Forecast: Cloudy with a few light showers 2:27 Chicago's Forecast: Rain Creeps Into The Forecast 2:25 Chicago Forecast: Mostly cloudy weekend 2:26 Chicago's Forecast: Pretty Quiet Work Week