FPUS53 KLSX 151033 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 533 AM CDT Wed Apr 15 2026 ILZ100-101-MOZ061-063-064-151800- 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 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms this morning, then showers likely with a chance of thunderstorms this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 90 percent. .THURSDAY...Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Lows around 60. South winds around 5 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 50s. Chance of rain 80 percent. .SATURDAY...A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs in the upper 60s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A 20 percent chance of showers. Cooler with lows around 40. .SUNDAY...Sunny. Highs in the lower 60s. .SUNDAY NIGHT...Clear. Lows around 40. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 50. Highs in the upper 70s. $$ MOZ042-049-050-151800- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers, mainly in the evening. Lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .THURSDAY...Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South winds around 5 mph. .FRIDAY...Mostly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent. .FRIDAY NIGHT...Showers. Thunderstorms likely, mainly in the evening. Cooler with lows in the mid 40s. Chance of rain 90 percent. .SATURDAY...Mostly sunny with a 40 percent chance of showers. Much cooler with highs around 60. .SATURDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Lows in the upper 30s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the lower 60s. Lows in the upper 30s. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ MOZ041-047-048-151800- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy with a chance of thunderstorms. A chance of showers this morning, then showers likely this afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent. .TONIGHT...Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .THURSDAY...Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Clear in the evening, then becoming partly cloudy. Lows around 60. South winds around 5 mph. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY NIGHT...Showers. Thunderstorms likely, mainly in the evening. Cooler with lows in the mid 40s. Chance of rain 90 percent. .SATURDAY...Mostly sunny with a 40 percent chance of showers. Much cooler with highs in the upper 50s. .SATURDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Lows in the upper 30s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the mid 60s. Lows around 40. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s. $$ ILZ095>097-MOZ018-019-026-027-034>036-151800- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy with a chance of thunderstorms. Showers likely, mainly this morning. Highs in the upper 70s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers, mainly in the evening. Lows around 60. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 80 percent. .THURSDAY...Sunny with a 20 percent chance of showers. Highs in the upper 70s. West winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South winds around 5 mph. .FRIDAY...Mostly sunny. Showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY NIGHT...Showers. Thunderstorms likely, mainly in the evening. Cooler with lows in the mid 40s. Chance of rain 90 percent. .SATURDAY...Mostly sunny with a 40 percent chance of showers. Much cooler with highs in the upper 50s. .SATURDAY NIGHT...Mostly clear. A slight chance of rain showers in the evening. Lows in the upper 30s. Chance of rain 20 percent. .SUNDAY...Sunny. Highs around 60. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY...Sunny. Not as cool with highs around 70. .MONDAY NIGHT...Partly cloudy. Not as cool with lows around 50. .TUESDAY...Sunny. Highs in the mid 70s. $$ ILZ069-070-074-151800- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 533 AM CDT Wed Apr 15 2026 .TODAY...Partly sunny with a slight chance of showers and thunderstorms this morning, then mostly cloudy with a chance of showers and thunderstorms this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows in the mid 60s. Southwest winds 10 to 15 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny in the morning, then clearing. Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 40 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Showers likely with a chance of thunderstorms. Lows in the upper 50s. Highs in the upper 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers in the evening, then mostly clear with a slight chance of rain and snow showers after midnight. Much cooler with lows around 40. Chance of precipitation 50 percent. .SUNDAY...Sunny. Highs in the lower 60s. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 60s. Lows in the upper 40s. .TUESDAY...Mostly sunny. Highs in the mid 70s. $$ MOZ074-084-085-099-151800- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy with a chance of showers. A chance of thunderstorms this afternoon. Highs in the lower 80s. South winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms in the morning, then sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. South winds around 5 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...A chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs around 70. Chance of rain 50 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Much cooler with lows in the upper 30s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the upper 60s. Lows in the upper 30s. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. .TUESDAY...Sunny. Highs in the upper 70s. $$ MOZ051-052-060-151800- Montgomery MO-Lincoln MO-Warren MO- 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows around 60. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .THURSDAY...Mostly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South winds around 5 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Showers. Thunderstorms likely, mainly in the evening. Cooler with lows in the upper 40s. Chance of rain 80 percent. .SATURDAY...Mostly sunny with a 40 percent chance of showers. Much cooler with highs in the lower 60s. .SATURDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Cooler with lows in the upper 30s. Chance of rain 20 percent. .SUNDAY...Sunny. Highs in the lower 60s. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ ILZ058-059-098-099-151800- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy with a chance of thunderstorms. A chance of showers this morning, then showers likely this afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .TONIGHT...Showers with a chance of thunderstorms. Lows in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent. .THURSDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 80. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds 5 to 10 mph, becoming south after midnight. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .FRIDAY NIGHT...A chance of thunderstorms. Showers. Lows around 50. Chance of rain 80 percent. .SATURDAY...A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs in the mid 60s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Cooler with lows in the upper 30s. Chance of rain 20 percent. .SUNDAY...Sunny. Highs around 60. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY...Sunny. Highs in the upper 60s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ ILZ060-064-065-151800- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 533 AM CDT Wed Apr 15 2026 .TODAY...Partly sunny this morning, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers this morning, then showers likely this afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny in the morning, then clearing. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 50s. Chance of rain 80 percent. .SATURDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms in the morning. A chance of showers. Much cooler with highs in the mid 60s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers. A slight chance of snow showers after midnight. Much cooler with lows in the upper 30s. Chance of precipitation 20 percent. .SUNDAY...Sunny. Highs in the upper 50s. .SUNDAY NIGHT...Clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the mid 60s. Lows in the upper 40s. .TUESDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ079-MOZ075-151800- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy. A slight chance of showers this morning, then a chance of showers and thunderstorms this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny with a chance of showers in the morning, then sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .THURSDAY NIGHT...Mostly clear. Lows around 60. South winds around 5 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 70 percent. .SATURDAY...A chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs around 70. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A 20 percent chance of showers. Much cooler with lows around 40. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the mid 60s. Lows in the upper 30s. .MONDAY...Sunny. Highs around 70. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ MOZ059-062-072-073-151800- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy with a chance of thunderstorms. A chance of showers this morning, then showers likely this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. .TONIGHT...A chance of thunderstorms. Showers, cooler with lows around 60. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent. .THURSDAY...Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Lows around 60. South winds around 5 mph. .FRIDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Cooler with lows around 50. Chance of rain 70 percent. .SATURDAY...A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs in the mid 60s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Cooler with lows in the upper 30s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the mid 60s. Lows in the upper 30s. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ ILZ102-MOZ065-151800- Monroe IL-Jefferson MO- 533 AM CDT Wed Apr 15 2026 .TODAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms this morning, then showers likely with a chance of thunderstorms this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. .TONIGHT...Showers with a chance of thunderstorms. Lows in the lower 60s. Southwest winds 5 to 10 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny in the morning, then clearing. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds around 5 mph. .FRIDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...A slight chance of thunderstorms in the morning. Partly sunny with a chance of showers. Much cooler with highs in the upper 60s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Cooler with lows in the upper 30s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Clear. Highs in the mid 60s. Lows in the upper 30s. .MONDAY...Sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. $$