CHICAGO - Chicago-area residents can expect a warm and humid weekend with only scattered chances for rain.

CHICAGO - Today is warm with scattered rain and storms. There is a chance for strong to severe storms with a slight risk in western and southwestern counties and marginal risk in Chicago points north and in NW Indiana. The chance for severe storms ramps up mid-afternoon through tonight. Highs today will be around 80.

The storm Prediction Center placed many of Chicago's southwestern counties under a "slight" risk of severe weather, which ranks as level two of five. The rest of the Chicago area was under a "marginal" risk, which ranks as level one.

Meteorologist Mary Kay Kleist has the latest First Alert Weather forecast.

As of the latest update, the game between the Chicago Cubs and the San Francisco Giants has not been canceled and is set to begin at 3:20 pm ET/2:20 pm CT.

Air quality in the Chicago area Wednesday and even into Thursday was expected to be at unhealthy levels, the National Weather Service said, with an alert issued for nearly all of northeast Illinois and northwest Indiana.

Meteorologist David Yeomans forecasts on CBS News Chicago weekdays at 11 a.m. and 4 p.m., and reports on the Climate Watch team. A tornado watch remains in effect for part of northwest Indiana as the threat of tornadoes from two rounds of severe storms has ...

The reemergence of thunderstorms and warming temperatures in the forecast are a reminder that tornado season has arrived in Chicagoland.