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 240 PM CDT Mon Mar 27 2023 .TONIGHT...Partly cloudy. Lows in the mid 30s. North winds 5 to 10 mph, becoming northeast. .TUESDAY...Mostly cloudy with a chance of rain in the morning, then partly sunny with isolated rain showers in the afternoon. Highs in the lower 50s. North winds 5 to 10 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly clear. Cold with lows in the lower 30s. West winds around 5 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 50s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. East winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Not as cool with lows in the upper 50s. Chance of rain 50 percent. .FRIDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy with highs in the lower 70s. Chance of rain 90 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Breezy and much cooler with lows in the lower 40s. Chance of rain 50 percent. .SATURDAY...Mostly sunny. Much cooler with highs in the mid 50s. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the upper 30s. Highs in the upper 60s. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Not as cool with lows around 50. Chance of rain 20 percent. .MONDAY...Mostly sunny with a 40 percent chance of showers. Highs in the lower 70s. $$