Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 654 AM CDT Thu Mar 28 2024 .TODAY...Sunny. Not as cool with highs in the lower 60s. South winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Mostly clear. Not as cool with lows in the lower 40s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .FRIDAY...Mostly sunny. Highs in the lower 70s. Southwest winds 15 to 20 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 20 percent chance of showers. Not as cool with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph. .SATURDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 40 percent. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms. Highs in the mid 70s. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 70s. Chance of rain 70 percent. .MONDAY NIGHT...A chance of thunderstorms. Showers, mainly in the evening. Lows in the lower 50s. Chance of rain 80 percent. .TUESDAY...Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Cooler with highs in the lower 60s. Chance of rain 50 percent. .TUESDAY NIGHT...Partly cloudy. Cooler with lows in the upper 30s. .WEDNESDAY...Sunny. Highs in the upper 50s. $$