Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO- Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 639 AM CDT Fri Apr 19 2024 .TODAY...Sunny. Much cooler with highs in the lower 60s. North winds 10 to 15 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 40s. North winds 5 to 10 mph. .SATURDAY...Mostly sunny. Highs around 60. Northwest winds 10 to 15 mph. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 30s. North winds 5 to 10 mph. .SUNDAY...Sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY...Sunny. Highs in the upper 60s. .MONDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Not as cool with lows in the lower 50s. Chance of rain 20 percent. .TUESDAY...Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. Chance of rain 20 percent. .WEDNESDAY...Sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the lower 40s. Chance of rain 20 percent. .THURSDAY...Partly sunny with a 50 percent chance of showers. Highs in the mid 60s. $$