Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
004 FPUS53 KLSX 101928 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 227 PM CDT Thu Sep 10 2026 ILZ100-101-MOZ061-063-064-110300- 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 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of showers and thunderstorms. Much cooler. Near steady temperature in the upper 70s. Northwest winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the upper 60s. North winds around 5 mph in the evening, becoming light and variable. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a 20 percent chance of showers. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. Humid with highs around 90. Southwest winds around 5 mph. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 60s. .SUNDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows around 70. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. $$ MOZ042-049-050-110300- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy and much cooler. Near steady temperature in the mid 70s. West winds around 5 mph. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. Patchy fog in the morning. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY...Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 50 percent. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows in the mid 60s. Highs in the upper 80s. .MONDAY NIGHT...Mostly clear. Lows in the upper 60s. .TUESDAY...Sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a 50 percent chance of showers. Highs in the lower 80s. $$ MOZ041-047-048-110300- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy and cooler. Near steady temperature in the mid 70s. Northwest winds around 5 mph. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Northeast winds around 5 mph in the evening, becoming light and variable. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. Areas of fog in the morning. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s. Southeast winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY...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 upper 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs around 90. Lows around 70. .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...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 50 percent. .WEDNESDAY...Partly sunny with a 50 percent chance of showers. Highs in the mid 80s. $$ ILZ095>097-MOZ018-019-026-027-034>036-110300- 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 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy. Near steady temperature in the upper 70s. Northwest winds around 5 mph. .TONIGHT...Mostly cloudy. Areas of fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph in the evening, becoming light and variable. .FRIDAY...Areas of fog in the morning. Partly sunny. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the mid 60s. Chance of rain 40 percent. .SUNDAY...Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 20 percent. .MONDAY...Mostly sunny. Highs in the upper 80s. .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. 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 50 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. Showers likely. Lows in the lower 60s. Chance of rain 70 percent. .WEDNESDAY...Showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 70 percent. $$ ILZ069-070-074-110300- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Much cooler. Near steady temperature in the upper 70s. Northeast winds around 5 mph. Chance of rain 40 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the upper 60s. North winds around 5 mph in the evening, becoming light and variable. 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. Southeast winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 60s. Light and variable winds. .SATURDAY...Mostly sunny. Humid with highs in the upper 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. .SUNDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 80s. Lows in the upper 60s. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly clear with a chance of showers. Lows in the upper 60s. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a 40 percent chance of showers. Highs in the upper 80s. $$ MOZ074-084-085-099-110300- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with highs in the lower 80s. North winds around 5 mph. Chance of rain 50 percent. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Light and variable winds, becoming southeast around 5 mph in the afternoon. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. Light and variable winds. .SATURDAY...Partly sunny in the morning, then clearing. Highs in the upper 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 90. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 80s. Lows in the upper 60s. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...Mostly clear. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 30 percent. .WEDNESDAY...Sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. $$ MOZ051-052-060-110300- Montgomery MO-Lincoln MO-Warren MO- 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Cloudy with a 20 percent chance of showers. Much cooler. Near steady temperature in the mid 70s. West winds around 5 mph. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Light and variable winds. .FRIDAY...Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. Highs in the lower 80s. Southeast winds around 5 mph. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. A slight chance of showers in the morning. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then mostly clear with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY...Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 30 percent. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows in the mid 60s. Highs in the upper 80s. .MONDAY NIGHT...Mostly clear. Lows in the upper 60s. .TUESDAY...Sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A chance of showers. Lows in the mid 60s. Chance of rain 50 percent. .WEDNESDAY...Partly sunny with a 50 percent chance of showers. Highs in the mid 80s. $$ ILZ058-059-098-099-110300- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of showers and thunderstorms. Cooler. Near steady temperature in the mid 70s. Northwest winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. .FRIDAY...Partly sunny. Patchy fog in the morning. A slight chance of showers in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. .SUNDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows in the mid 60s. Highs in the upper 80s. .MONDAY NIGHT...Mostly clear. Lows in the upper 60s. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. .TUESDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 50 percent. .WEDNESDAY...Partly sunny with a 50 percent chance of showers. Highs in the mid 80s. $$ ILZ060-064-065-110300- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler. Near steady temperature in the upper 70s. North winds around 5 mph. Chance of rain 50 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. .FRIDAY...Patchy fog in the morning. Partly sunny in the morning, then mostly cloudy with 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...Mostly cloudy. A slight 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 20 percent. .SATURDAY...Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the upper 80s. Lows in the lower 60s. Chance of rain 20 percent. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 80s. Lows in the upper 60s. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. Lows in the mid 60s. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a 50 percent chance of showers. Highs in the mid 80s. $$ ILZ079-MOZ075-110300- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler. Near steady temperature around 80. North winds around 5 mph. Chance of rain 50 percent. .TONIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a slight chance of showers. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .FRIDAY...Patchy fog in the morning. Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. East winds around 5 mph, becoming south in the afternoon. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. Humid with highs around 90. Southwest winds around 5 mph. Heat index values up to 101 in the afternoon. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 90. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs in the upper 80s. Lows in the upper 60s. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly clear with a chance of showers. Lows in the upper 60s. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. $$ MOZ059-062-072-073-110300- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of showers and thunderstorms. Much cooler. Near steady temperature in the upper 70s. North winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. 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 20 percent. .FRIDAY...Mostly cloudy. Patchy fog in the morning. 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 lower 80s. Southeast winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. Humid with highs in the upper 80s. Southwest winds around 5 mph. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. .SUNDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs around 90. Lows in the upper 60s. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Highs in the upper 80s. Chance of rain 50 percent. $$ ILZ102-MOZ065-110300- Monroe IL-Jefferson MO- 227 PM CDT Thu Sep 10 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of showers and thunderstorms. Cooler. Near steady temperature around 80. North winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph in the evening, becoming light and variable. .FRIDAY...Mostly cloudy. Patchy fog in the morning. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. South winds around 5 mph. .SATURDAY...Mostly sunny. Humid with highs around 90. Southwest winds around 5 mph. Heat index values up to 101 in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 60s. .SUNDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 60s. .MONDAY AND MONDAY NIGHT...Mostly clear. Highs around 90. Lows in the upper 60s. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny with a 50 percent chance of showers. Highs in the upper 80s. $$