Expires:202504100700;;056048 FPUS53 KLSX 092309 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 608 PM CDT Wed Apr 9 2025 ILZ102-MOZ065-100700- Monroe IL-Jefferson MO- 609 PM CDT Wed Apr 9 2025 .TONIGHT...Mostly cloudy. A chance of showers this evening. Lows in the upper 40s. Southwest winds 5 to 10 mph with gusts up to 25 mph, becoming west after midnight. Chance of rain 30 percent. .THURSDAY...Partly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 70. West winds 10 to 15 mph. Chance of rain 60 percent. .THURSDAY NIGHT...Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 40s. Northwest winds 5 to 10 mph. Chance of rain 60 percent. .FRIDAY...Partly sunny. Cooler with highs in the upper 50s. North winds 5 to 10 mph with gusts up to 20 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 30s. North winds around 5 mph in the evening, becoming light and variable. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs in the mid 60s. Lows in the mid 40s. .SUNDAY...Sunny. Highs in the lower 70s. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Not as cool with lows in the upper 50s. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms in the morning, then mostly cloudy in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then partly cloudy with a slight chance of showers after midnight. Cooler with lows in the mid 40s. Chance of rain 20 percent. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 60s. Lows around 40. $$