Day A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.
Night Partly cloudy, with a low around 67. Light south wind.
Includes the Counties: Madison County Il,
Saint Clair County Il,
Monroe County Il,
Saint Charles County Mo,
Saint Louis County Mo,
Saint Louis City County Mo,
Jefferson County Mo,
Including The Cities Of Alton, Edwardsville, Belleville, Cahokia,
Saint Charles, And Saint Louis