Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
782 FPUS53 KLSX 101358 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 858 AM CDT Thu Sep 10 2026 ILZ100-101-MOZ061-063-064-102100- 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 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers. Much cooler with highs in the upper 70s. Northwest winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY...Mostly cloudy. Patchy fog in the morning. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 30 percent. .SATURDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the upper 80s. Lows in the upper 60s. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 100 in the afternoon. .MONDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20 percent. .TUESDAY...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 upper 80s. Chance of rain 40 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 40 percent chance of showers. Lows in the mid 60s. Highs in the lower 80s. $$ MOZ042-049-050-102100- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 858 AM CDT Thu Sep 10 2026 .TODAY...Showers with a chance of thunderstorms this morning, then a chance of showers with a slight chance of thunderstorms this afternoon. Cooler with highs in the upper 70s. Southwest winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph. .FRIDAY...Partly sunny. Patchy fog in the morning. A slight chance of showers in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph. .SATURDAY...Mostly sunny. A chance of showers, mainly in the morning. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers, mainly in the evening. Lows in the mid 60s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the mid 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 60s. .MONDAY...Sunny. Highs in the upper 80s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 40 percent. .TUESDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Cooler with highs in the upper 70s. Chance of rain 50 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows around 60. Highs in the upper 70s. Chance of rain 50 percent. $$ MOZ041-047-048-102100- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers, mainly this morning. Cooler with highs in the upper 70s. South winds around 5 mph, becoming west around 5 mph this afternoon. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. East winds around 5 mph. .FRIDAY...Patchy fog in the morning. Partly sunny. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph. .SATURDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of showers. Lows in the upper 60s. .SUNDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 70. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 100 in the afternoon. .MONDAY NIGHT...Mostly clear with a slight chance of thunderstorms. A chance of showers. Lows in the upper 60s. Chance of rain 40 percent. .TUESDAY...Partly sunny with a chance of showers with a slight chance of thunderstorms. Cooler with highs around 80. Chance of rain 50 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Highs around 80. Chance of rain 50 percent. $$ ILZ095>097-MOZ018-019-026-027-034>036-102100- 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 858 AM CDT Thu Sep 10 2026 .TODAY...Cloudy. Showers likely with a chance of thunderstorms this morning, then a slight chance of showers this afternoon. Highs in the upper 70s. Southwest winds around 5 mph, becoming northwest around 5 mph this afternoon. Chance of rain 70 percent. .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. .FRIDAY...Patchy fog in the morning. Mostly sunny. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny with a 40 percent chance of showers. Highs in the mid 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 40 percent. .SUNDAY...Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the mid 80s. Chance of rain 40 percent. .SUNDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the upper 60s. Chance of rain 20 percent. .MONDAY...Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .MONDAY NIGHT...Mostly clear with a chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 50 percent. .TUESDAY...Partly sunny with a 50 percent chance of showers. Cooler with highs in the mid 70s. .TUESDAY NIGHT...Partly cloudy with a 50 percent chance of showers. Lows around 60. .WEDNESDAY...Partly sunny with a 50 percent chance of showers. Highs in the mid 70s. $$ ILZ069-070-074-102100- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers. Much cooler with highs in the lower 80s. Northwest winds around 5 mph. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .FRIDAY...Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Light and variable winds. Chance of rain 30 percent. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs in the upper 80s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the upper 60s. Highs in the lower 90s. Heat index values up to 100. .TUESDAY...Sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a 40 percent chance of showers. Highs in the mid 80s. $$ MOZ074-084-085-099-102100- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 858 AM CDT Thu Sep 10 2026 .TODAY...Showers likely with a chance of thunderstorms. Cooler with highs in the lower 80s. Northeast winds around 5 mph, becoming northwest this afternoon. Chance of rain 70 percent. .TONIGHT...Cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 80. East winds around 5 mph, becoming southeast in the afternoon. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Light and variable winds. Chance of rain 40 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs in the upper 80s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the upper 60s. Highs around 90. .TUESDAY...Sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Chance of rain 50 percent. $$ MOZ051-052-060-102100- Montgomery MO-Lincoln MO-Warren MO- 858 AM CDT Thu Sep 10 2026 .TODAY...Showers with a chance of thunderstorms this morning, then a chance of showers with a slight chance of thunderstorms this afternoon. Much cooler with highs in the upper 70s. West winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. A slight chance of showers in the evening. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .FRIDAY...Partly sunny. Patchy fog in the morning. A slight chance of showers in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph in the evening, becoming light and variable. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the upper 80s. Lows in the upper 60s. .MONDAY...Sunny. Highs around 90. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent. .TUESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 50 percent chance of showers. Lows around 60. Highs in the upper 70s. $$ ILZ058-059-098-099-102100- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 858 AM CDT Thu Sep 10 2026 .TODAY...Showers with a chance of thunderstorms this morning, then showers likely with a slight chance of thunderstorms this afternoon. Cooler with highs in the upper 70s. West winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. A chance of showers in the evening. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. Chance of rain 30 percent. .FRIDAY...Partly sunny. Patchy fog in the morning. A slight chance of showers in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the mid 60s. Southeast winds around 5 mph. Chance of rain 20 percent. .SATURDAY...Mostly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. Highs in the upper 80s. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. .MONDAY...Sunny. Highs in the lower 90s. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 30 percent. .TUESDAY...Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy with a 40 percent chance of showers. Lows in the lower 60s. .WEDNESDAY...Mostly sunny with a 50 percent chance of showers. Highs in the lower 80s. $$ ILZ060-064-065-102100- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers. Much cooler with highs in the upper 70s. West winds around 5 mph. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY...Mostly cloudy. Patchy fog in the morning. A chance of showers in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the mid 60s. .SUNDAY...Mostly sunny. Highs in the upper 80s. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 60s. Highs in the lower 90s. .MONDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY...Mostly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 40 percent chance of showers. Lows in the lower 60s. Highs in the lower 80s. $$ ILZ079-MOZ075-102100- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 858 AM CDT Thu Sep 10 2026 .TODAY...Showers likely with a chance of thunderstorms. Cooler with highs in the lower 80s. North winds around 5 mph. Chance of rain 70 percent. .TONIGHT...Cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Patchy fog after midnight. Lows in the upper 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 60s. South winds around 5 mph. Chance of rain 40 percent. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs in the upper 80s. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the upper 60s. Highs in the lower 90s. Heat index values up to 100. .TUESDAY...Sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a 40 percent chance of showers. Highs in the mid 80s. $$ MOZ059-062-072-073-102100- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers. Much cooler with highs in the upper 70s. North winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 80. Southeast winds around 5 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Light and variable winds, becoming south around 5 mph after midnight. 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 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the upper 80s. Lows in the upper 60s. .MONDAY...Sunny. Highs in the lower 90s. .MONDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Lows in the lower 60s. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. $$ ILZ102-MOZ065-102100- Monroe IL-Jefferson MO- 858 AM CDT Thu Sep 10 2026 .TODAY...A chance of thunderstorms. Showers. Much cooler with highs in the upper 70s. North winds around 5 mph. Chance of rain near 100 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the upper 80s. Lows in the upper 60s. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 100 in the afternoon. .MONDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Lows in the lower 60s. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a 40 percent chance of showers. Highs in the mid 80s. $$