FPUS53 KLSX 090843 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 343 AM CDT Thu Jul 9 2026 ILZ100-101-MOZ061-063-064-091600- 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 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. A chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 103. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 101 early in the evening. .FRIDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 100 in the afternoon. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Humid with lows in the lower 70s. Northeast winds around 5 mph, becoming south after midnight. Chance of rain 70 percent. .SATURDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. .SUNDAY...Sunny with a 20 percent chance of showers. Highs in the upper 80s. .SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows around 70. Highs around 90. .TUESDAY NIGHT...Clear. Lows in the lower 70s. .WEDNESDAY...Sunny. Highs in the lower 90s. $$ MOZ042-049-050-091600- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. A chance of showers and thunderstorms, mainly this morning. Highs around 90. Southwest winds 5 to 10 mph. Chance of rain 40 percent. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 60 percent. .FRIDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Showers likely. A chance of thunderstorms, mainly in the evening. Lows around 70. Northeast winds around 5 mph, becoming west after midnight. Chance of rain 60 percent. .SATURDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. North winds 5 to 10 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. A 20 percent chance of showers. Lows in the upper 60s. .SUNDAY...Sunny with a 20 percent chance of showers. Highs in the mid 80s. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. .MONDAY NIGHT THROUGH WEDNESDAY...Clear. Lows around 70. Highs in the lower 90s. $$ MOZ041-047-048-091600- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. A chance of showers and thunderstorms, mainly this morning. Highs in the lower 90s. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 101 this afternoon. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 60 percent. Heat index values up to 101 early in the evening. .FRIDAY...Partlysunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Northwest winds around 5 mph, becoming southeast in the afternoon. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 70s. Northwest winds around 5 mph. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. North winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. A 20 percent chance of showers. Lows in the upper 60s. .SUNDAY...Sunny. A slight chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the upper 60s. Highs in the lower 90s. .MONDAY NIGHT THROUGH WEDNESDAY...Clear. Lows in the lower 70s. Highs in the lower 90s. $$ ILZ095>097-MOZ018-019-026-027-034>036-091600- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .TONIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows around 70. South winds around 5 mph, becoming west around 5 mph after midnight. Chance of rain 40 percent. .FRIDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. North winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 60 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Northeast winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT AND SUNDAY...Mostly clear. A 20 percent chance of showers. Lows in the upper 60s. Highs in the mid 80s. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Clear. Lows around 70. Highs around 90. .WEDNESDAY...Sunny. Highs in the lower 90s. $$ ILZ069-070-074-091600- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 343 AM CDT Thu Jul 9 2026 .TODAY...Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 102. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 100 early in the evening. .FRIDAY...Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon. Chance of rain 50 percent. Heat index values up to 100 in the afternoon. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Humid with lows around 70. Southwest winds around 5 mph. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. West winds around 5 mph, becoming north around 5 mph in the afternoon. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a 50 percent chance of showers. Lows in the upper 60s. .SUNDAY...Sunny. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 30 percent. .SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s. Highs around 90. $$ MOZ074-084-085-099-091600- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 103. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers likely. Humid with lows in the lower 70s. South winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 60 percent. .FRIDAY...Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Humid with lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. .SUNDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Lows in the upper 60s. Chance of rain 20 percent. .MONDAY...Sunny. Highs in the upper 80s. .MONDAY NIGHT...Clear. Lows in the upper 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Clear. Lows in the upper 60s. .WEDNESDAY...Sunny. Highs around 90. $$ MOZ051-052-060-091600- Montgomery MO-Lincoln MO-Warren MO- 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs around 90. Southwest winds around 5 mph. Chance of rain 50 percent. Heat index values up to 100. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...A chance of thunderstorms. Showers likely. Lows in the upper 60s. Northeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent. .SATURDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. North winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent. .SUNDAY...Sunny with a 20 percent chance of showers. Highs in the upper 80s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. .TUESDAY AND TUESDAY NIGHT...Clear. Highs around 90. Lows around 70. .WEDNESDAY...Sunny. Highs in the lower 90s. $$ ILZ058-059-098-099-091600- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. A chance of showers and thunderstorms this afternoon. Highs around 90. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .TONIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows around 70. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Showers likely. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Northeast winds around 5 mph, becoming south after midnight. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. North winds 5 to 10 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the mid 60s. .SUNDAY...Sunny with a 20 percent chance of showers. Highs in the mid 80s. .SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s. Highs around 90. $$ ILZ060-064-065-091600- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. Showers likely with a chance of thunderstorms this afternoon. Highs around 90. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .TONIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers. Lows around 70. Southwest winds around 5 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny with a slight chance of showers. A chance of thunderstorms, mainly in the morning. Humid with highs in the mid 80s. West winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Lows in the upper 60s. Northeast winds around 5 mph, becoming southeast after midnight. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. North winds around 5 mph. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the upper 60s. .SUNDAY...Sunny with a 20 percent chance of showers. Highs in the mid 80s. .SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. $$ ILZ079-MOZ075-091600- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 343 AM CDT Thu Jul 9 2026 .TODAY...Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 105. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers likely. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 101 early in the evening. .FRIDAY...Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 101 in the afternoon. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms. Humid with lows around 70. Southwest winds around 5 mph. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. .SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper 60s. Highs around 90. Heat index values up to 100. $$ MOZ059-062-072-073-091600- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 102. .TONIGHT...Mostly cloudy with showers likely with a chance of thunderstorms. Humid with lows in the lower 70s. Southwest winds around 5 mph. Gusts up to 20 mph after midnight. Chance of rain 60 percent. .FRIDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 40 percent. .FRIDAY NIGHT...A chance of thunderstorms. Showers likely. Lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent. .SATURDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Northwest winds around 5 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. .SUNDAY...Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. .MONDAY NIGHT...Clear. Lows in the upper 60s. .TUESDAY...Sunny. Highs around 90. .TUESDAY NIGHT...Clear. Lows in the upper 60s. .WEDNESDAY...Sunny. Highs in the lower 90s. $$ ILZ102-MOZ065-091600- Monroe IL-Jefferson MO- 343 AM CDT Thu Jul 9 2026 .TODAY...Partly sunny. A slight chance of showers this morning, then a chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 105. .TONIGHT...Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 70 percent. Heat index values up to 101 early in the evening. .FRIDAY...Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 40 percent. Heat index values up to 101. .FRIDAY NIGHT...Showers likely. A chance of thunderstorms, mainly in the evening. Humid with lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent. .SATURDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 40 percent. .SUNDAY...Sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. .SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the upper 60s. Highs around 90. .TUESDAY NIGHT...Clear. Lows around 70. .WEDNESDAY...Sunny. Highs in the lower 90s. Heat index values up to 100. $$