Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
909 FPUS53 KLSX 210453 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 1153 PM CDT Sun Sep 20 2026 ILZ100-101-MOZ061-063-064-211200- 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 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Patchy fog in the morning. Much cooler with highs in the mid 70s. North winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph. .TUESDAY...Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. .THURSDAY...Mostly sunny. Highs in the mid 70s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 70s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy. Lows in the upper 50s. .SUNDAY...Mostly sunny. Highs in the mid 80s. $$ MOZ042-049-050-211200- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Cloudy with a chance of showers and thunderstorms. Patchy fog. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Patchy fog in the morning. Much cooler with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Highs in the upper 60s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. Northeast winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower 70s. Lows around 50. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .FRIDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the mid 70s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 30 percent chance of showers. Lows in the mid 50s. Highs in the mid 70s. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ041-047-048-211200- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Cloudy with a chance of showers and thunderstorms. Patchy fog. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy. A chance of showers in the morning. Patchy fog in the morning. Much cooler with highs in the lower 70s. Northeast winds around 5 mph. Chance of rain 30 percent. .MONDAY NIGHT...Mostly cloudy. Lows around 60. Northeast winds around 5 mph. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. Northeast winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower 70s. Lows in the lower 50s. .THURSDAY...Mostly sunny. Highs in the mid 70s. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .FRIDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the mid 70s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 30 percent chance of showers. Lows in the upper 50s. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the lower 60s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ095>097-MOZ018-019-026-027-034>036-211200- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Cloudy with a chance of showers and thunderstorms. Patchy fog. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent. .MONDAY...Cloudy. Patchy fog in the morning. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. Much cooler. Near steady temperature in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Northeast winds 5 to 10 mph. .TUESDAY...Mostly cloudy. A slight chance of showers in the morning. Highs in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 50. Northeast winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the upper 60s. Lows in the lower 50s. .THURSDAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .FRIDAY AND FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s. Lows in the mid 50s. .SATURDAY...Mostly cloudy. A chance of showers, mainly in the morning. Highs in the mid 70s. Chance of rain 30 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 20 percent chance of showers. Lows in the upper 50s. Highs in the upper 70s. $$ ILZ069-070-074-211200- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...A chance of thunderstorms. Showers likely. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning. Much cooler with highs in the upper 70s. North winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 60. Northeast winds 5 to 10 mph. .TUESDAY...Partly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the mid 50s. Highs in the lower 80s. $$ MOZ074-084-085-099-211200- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Northwest winds around 5 mph with gusts up to 20 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Cooler with highs in the lower 80s. North winds around 5 mph. Chance of rain 50 percent. .MONDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. North winds around 5 mph. Chance of rain 50 percent. .TUESDAY...Partly sunny. Highs in the mid 70s. North winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 50s. North winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SUNDAY...Mostly sunny. Highs in the lower 80s. $$ MOZ051-052-060-211200- Montgomery MO-Lincoln MO-Warren MO- 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Cloudy with a chance of showers and thunderstorms. Patchy fog. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Patchy fog in the morning. Much cooler with highs around 70. Northeast winds around 5 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph. .TUESDAY...Mostly cloudy. Highs around 70. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows in the lower 50s. Northeast winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower 70s. Lows in the lower 50s. .THURSDAY...Mostly sunny. Highs in the lower 70s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid 70s. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Highs in the mid 70s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ058-059-098-099-211200- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Cloudy with a chance of thunderstorms. A chance of showers late this evening, then showers likely. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning. Patchy fog in the morning. Much cooler with highs in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast winds 5 to 10 mph. .TUESDAY...Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the lower 80s. $$ ILZ060-064-065-211200- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...A chance of thunderstorms. Showers. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning. Patchy fog in the morning. Much cooler with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 50 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northeast winds 5 to 10 mph. .TUESDAY...Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs in the mid 70s. Lows in the lower 50s. .FRIDAY...Partly sunny. Highs in the mid 70s. .FRIDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 80s. $$ ILZ079-MOZ075-211200- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Much cooler with highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent. .TUESDAY...Partly sunny. Highs in the mid 70s. North winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. North winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs in the mid 70s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs in the lower 80s. $$ MOZ059-062-072-073-211200- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...Showers likely with a chance of thunderstorms. Lows in the mid 60s. West winds around 5 mph with gusts up to 20 mph, becoming north. Chance of rain 70 percent. .MONDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Much cooler with highs in the mid 70s. North winds around 5 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. Lows around 60. Northeast winds around 5 mph. .TUESDAY...Mostly cloudy. Highs in the lower 70s. Northeast winds around 5 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows in the lower 50s. Northeast winds around 5 mph. .WEDNESDAY...Mostly sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. .THURSDAY...Mostly sunny. Highs in the mid 70s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ102-MOZ065-211200- Monroe IL-Jefferson MO- 1153 PM CDT Sun Sep 20 2026 .OVERNIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Northeast winds around 5 mph. Gusts up to 20 mph late this evening. Chance of rain 90 percent. .MONDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Much cooler with highs in the upper 70s. North winds around 5 mph. Chance of rain 40 percent. .MONDAY NIGHT...Mostly cloudy. Lows around 60. Northeast winds around 5 mph. .TUESDAY...Mostly cloudy. Highs in the mid 70s. Northeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. North winds 5 to 10 mph. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs in the mid 70s. Lows in the lower 50s. .FRIDAY...Partly sunny. Highs in the upper 70s. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 80s. $$