Expires:202512092100;;278634 FPUS53 KLSX 091355 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 754 AM CST Tue Dec 9 2025 ILZ100-101-MOZ061-063-064-092100- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 754 AM CST Tue Dec 9 2025 .TODAY...Sunny. Not as cool with highs in the lower 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly cloudy. A slight chance of rain after midnight. Not as cool. Near steady temperature in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny in the morning, then becoming mostly cloudy. Breezy with highs in the mid 40s. Temperature falling into the upper 30s in the afternoon. Northwest winds 15 to 25 mph with gusts up to 40 mph. .WEDNESDAY NIGHT...Mostly cloudy. Cooler with lows in the mid 20s. Northwest winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Highs around 40. West winds around 5 mph, becoming south around 5 mph in the afternoon. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the upper 20s. Highs in the lower 40s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows around 20. Highs in the upper 20s. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 10 above. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower 20s. Lows 10 to 15. Wind chill values as low as zero. .MONDAY...Partly sunny. A slight chance of snow in the morning, then a chance of rain in the afternoon. Not as cool with highs in the upper 30s. Chance of precipitation 30 percent. $$