FPUS53 KLSX 192148 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 448 PM CDT Sun Apr 19 2026 ILZ100-101-MOZ061-063-064-200500- 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 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the lower 40s. North winds 10 to 15 mph, becoming northeast around 5 mph after midnight. .MONDAY...Sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows around 50. Southeast winds 5 to 10 mph, becoming south after midnight. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds 10 to 15 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then becoming partly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...A slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Cooler with lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows around 50. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ MOZ042-049-050-200500- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the upper 30s. North winds 5 to 10 mph, becoming east after midnight. .MONDAY...Sunny. Highs in the lower 70s. East winds 5 to 10 mph, becoming south in the afternoon. .MONDAY NIGHT...Mostly clear. Not as cool with lows around 50. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then becoming partly sunny. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. .THURSDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers with a slight chance of thunderstorms. Highs in the lower 70s. Chance of rain 50 percent. .FRIDAY NIGHT...A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers inthe morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. $$ MOZ041-047-048-200500- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the lower 40s. Northwest winds 5 to 10 mph, becoming east after midnight. .MONDAY...Sunny. Highs in the lower 70s. Southeast winds 5 to 10 mph, becoming south in the afternoon. .MONDAY NIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph with gusts up to 25 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. .THURSDAY NIGHT...Showers with a chance of thunderstorms. Lows in the upper 50s. Chance of rain 80 percent. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers with a slight chance of thunderstorms. Cooler with highs in the lower 70s. Chance of rain 50 percent. .FRIDAY NIGHT...A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny with a 40 percent chance of showers. Highs in the upper 60s. $$ ILZ095>097-MOZ018-019-026-027-034>036-200500- 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 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the mid 30s. North winds 10 to 15 mph, becoming northeast around 5 mph after midnight. .MONDAY...Sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. .MONDAY NIGHT...Clear in the evening, then becoming partly cloudy. Not as cool with lows in the lower 50s. South winds 10 to 15 mph. Gusts up to 30 mph after midnight. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent. .THURSDAY NIGHT...Showers with a chance of thunderstorms. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers. A slight chance of thunderstorms in the afternoon. Cooler with highs around 70. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Cooler with lows in the upper 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs in the upper 60s. .SATURDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 30 percent. $$ ILZ069-070-074-200500- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows around 40. Northwest winds 5 to 10 mph, becoming northeast after midnight. .MONDAY...Sunny. Highs in the mid 60s. East winds around 5 mph, becoming southeast around 5 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds 5 to 10 mph. .TUESDAY...Sunny. Not as cool with highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Cooler with lows in the lower 50s. Chance of rain 40 percent. .SATURDAY...Mostly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ MOZ074-084-085-099-200500- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 448 PM CDT Sun Apr 19 2026 .TONIGHT...Mostly clear. Lows in the lower 40s. West winds around 5 mph, becoming north around 5 mph after midnight. .MONDAY...Sunny. Highs in the lower 70s. East winds around 5 mph, becoming south in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds around 5 mph. .TUESDAY...Mostly sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the lower 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the mid 50s. .THURSDAY...Sunny in the morning, then becoming partly sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...A slight chance of thunderstorms. Showers likely. Highs in the mid 70s. Chance of rain 70 percent. .FRIDAY NIGHT...A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows around 50. Highs in the lower 70s. Chance of rain 30 percent. $$ MOZ051-052-060-200500- Montgomery MO-Lincoln MO-Warren MO- 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the upper 30s. North winds 5 to 10 mph, becoming northeast after midnight. .MONDAY...Sunny. Highs in the upper 60s. East winds 5 to 10 mph, becoming southeast in the afternoon. .MONDAY NIGHT...Mostly clear. Not as cool with lows around 50. South winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Becoming partly sunny in the afternoon. A slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 70s. Chance of rain 60 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Cooler with lows in the upper 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs in the upper 60s. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ ILZ058-059-098-099-200500- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the mid 30s. North winds 10 to 15 mph, becoming northeast 5 to 10 mph after midnight. .MONDAY...Sunny. Highs in the mid 60s. Southeast winds 5 to 10 mph. .MONDAY NIGHT...Clear in the evening, then becoming partly cloudy. Not as cool with lows in the upper 40s. South winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then becoming partly sunny. Breezy with highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Becoming partly sunny in the afternoon. A slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Cooler with lows in the upper 40s. Chance of rain 50 percent. .SATURDAY...A slight chance of thunderstorms in the morning. Mostly sunny with a slight chance of showers. Highs in the upper 60s. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 40s. Chance of rain 30 percent. .SUNDAY...Partly sunny with a 20 percent chance of showers. Highs in the upper 60s. $$ ILZ060-064-065-200500- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows in the upper 30s. North winds 10 to 15 mph, becoming northeast around 5 mph after midnight. .MONDAY...Sunny. Highs in the lower 60s. East winds around 5 mph, becoming southeast around 5 mph in the afternoon. .MONDAY NIGHT...Clear in the evening, then becoming partly cloudy. Not as cool with lows in the upper 40s. South winds 5 to 10 mph. .TUESDAY...Sunny. Not as cool with highs in the mid 70s. Southwest winds 15 to 20 mph. .TUESDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the upper 70s. .THURSDAY NIGHT AND FRIDAY...Showers likely with a chance of thunderstorms. Lows in the lower 60s. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny with a 20 percent chance of showers. Highs in the upper 60s. $$ ILZ079-MOZ075-200500- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 448 PM CDT Sun Apr 19 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows around 40. West winds 5 to 10 mph, becoming northeast after midnight. .MONDAY...Sunny. Highs in the upper 60s. East winds around 5 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds 5 to 10 mph. .TUESDAY...Mostly sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs around 80. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 60 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms. Highs in the mid 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 50s. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Highs around 70. Chance of rain 30 percent. $$ MOZ059-062-072-073-200500- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 448 PM CDT Sun Apr 19 2026 .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the lower 40s. West winds 5 to 10 mph, becoming northeast after midnight. .MONDAY...Sunny. Highs in the lower 70s. East winds around 5 mph, becoming south around 5 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds around 5 mph. Gusts up to 20 mph after midnight. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows around 60. Chance of rain 80 percent. .FRIDAY...Becoming partly sunny in the afternoon. A slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Chance of rain 30 percent. $$ ILZ102-MOZ065-200500- Monroe IL-Jefferson MO- 448 PM CDT Sun Apr 19 2026 .TONIGHT...Partly cloudy. Lows around 40. Northwest winds 5 to 10 mph, becoming northeast after midnight. .MONDAY...Sunny. Highs around 70. Southeast winds around 5 mph. .MONDAY NIGHT...Mostly clear. Not as cool with lows around 50. South winds around 5 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the mid 50s. Southwest winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 70s. Lows in the upper 50s. .THURSDAY...Sunny in the morning, then becoming partly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms. Highs in the mid 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Highs around 70. Chance of rain 30 percent. $$