Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
001 FPUS53 KLSX 141023 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 523 AM CDT Mon Sep 14 2026 ILZ100-101-MOZ061-063-064-141800- 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 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly sunny. Highs in the upper 80s. Southeast winds 10 to 15 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. Southeast winds 10 to 15 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Warmer with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 108. .TUESDAY NIGHT...Partly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. Heat index values up to 103 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Hot with highs in the mid 90s. Southeast winds around 5 mph, becoming southwest around 5 mph in the afternoon. Chance of rain 20 percent. Heat index values up to 106. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 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 upper 80s. Chance of rain 30 percent. $$ MOZ042-049-050-141800- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly sunny. Highs in the upper 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 50 percent. Heat index values up to 105. .TUESDAY NIGHT...Showers and thunderstorms likely in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. East winds around 5 mph. Chance of rain 60 percent. .WEDNESDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. East winds around 5 mph, becoming south in the afternoon. Chance of rain 20 percent. Heat index values up to 103 in the afternoon. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .THURSDAY NIGHT...Partly cloudy. Lows around 70. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 40 percent. $$ MOZ041-047-048-141800- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly sunny. Warmer with highs in the lower 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 100 this afternoon. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY NIGHT...Showers and thunderstorms likely in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Humid with lows around 70. East winds around 5 mph. Chance of rain 60 percent. Heat index values up to 102 early in the evening. .WEDNESDAY...Mostly sunny. A chance of showers, mainly in the morning. Humid with highs in the mid 90s. East winds around 5 mph, becoming south in the afternoon. Chance of rain 50 percent. Heat index values up to 104 in the afternoon. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows around 70. .SATURDAY...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. .SATURDAY NIGHT...Partly cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40 percent. .SUNDAY...Partly 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 lower 80s. Chance of rain 30 percent. $$ ILZ095>097-MOZ018-019-026-027-034>036-141800- 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 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly cloudy with a slight chance of showers and thunderstorms this morning, then mostly sunny this afternoon. Highs in the mid 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .TONIGHT...Partly cloudy. Not as cool with lows in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs around 90. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of rain 70 percent. Heat index values up to 101. .TUESDAY NIGHT...Showers and thunderstorms likely in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. .WEDNESDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 80s. East winds around 5 mph, becoming southeast in the afternoon. Chance of rain 50 percent. Heat index values up to 100 in the afternoon. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 40 percent. .THURSDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the upper 80s. Chance of rain 50 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the upper 60s. Chance of rain 20 percent. .FRIDAY...Partly 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 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows in the upper 60s. .SATURDAY...Mostly sunny with a 50 percent chance of showers. Highs in the mid 80s. .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 60s. Chance of rain 40 percent. .SUNDAY...Partly 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 70s. Chance of rain 40 percent. $$ ILZ069-070-074-141800- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 523 AM CDT Mon Sep 14 2026 .TODAY...Sunny. Highs in the mid 80s. East winds 5 to 10 mph. .TONIGHT...Mostly clear. Lows in the upper 60s. Southeast winds 5 to 10 mph. .TUESDAY...Sunny, warmer with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 108 in the afternoon. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. Heat index values up to 103 early in the evening. .WEDNESDAY...Mostly sunny. Hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 70. Highs in the lower 90s. Heat index values up to 100. .SATURDAY...Sunny. Highs in the lower 90s. .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. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. $$ MOZ074-084-085-099-141800- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 523 AM CDT Mon Sep 14 2026 .TODAY...Sunny. Highs in the upper 80s. East winds 5 to 10 mph. .TONIGHT...Mostly clear. Lows in the upper 60s. Southeast winds around 5 mph with gusts up to 20 mph. .TUESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 107. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows around 70. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Heat index values up to 101 early in the evening. .WEDNESDAY...Sunny. Highs in the mid 90s. South winds around 5 mph. Heat index values up to 104. .WEDNESDAY NIGHT...Mostly clear. Lows around 70. .THURSDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 60s. .FRIDAY THROUGH SATURDAY...Mostly clear. Highs in the lower 90s. Lows in the upper 60s. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. $$ MOZ051-052-060-141800- Montgomery MO-Lincoln MO-Warren MO- 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly sunny. Highs in the mid 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Heat index values up to 106. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the upper 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. Heat index values up to 101 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the lower 90s. East winds around 5 mph, becoming south in the afternoon. Chance of rain 20 percent. Heat index values up to 104 in the afternoon. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy. Lows around 70. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s. .SATURDAY...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. .SATURDAY NIGHT...Partly 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 mid 60s. Chance of rain 30 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 lower 80s. Chance of rain 40 percent. $$ ILZ058-059-098-099-141800- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 523 AM CDT Mon Sep 14 2026 .TODAY...Partly sunny this morning, then clearing. Highs in the mid 80s. Southeast winds 10 to 15 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows around 70. Southeast winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Warmer with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 104. .TUESDAY NIGHT...Showers and thunderstorms likely in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Southeast winds around 5 mph, becoming northeast around 5 mph after midnight. Chance of rain 60 percent. Heat index values up to 100 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 90s. East winds around 5 mph, becoming south around 5 mph in the afternoon. Chance of rain 50 percent. Heat index values up to 102 in the afternoon. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .THURSDAY NIGHT...Partly cloudy. Lows around 70. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Lows in the upper 60s. Chance of rain 20 percent. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly 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 mid 60s. Chance of rain 30 percent. .SUNDAY...Partly 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. $$ ILZ060-064-065-141800- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 523 AM CDT Mon Sep 14 2026 .TODAY...Mostly sunny. Highs in the mid 80s. East winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Mostly clear. Lows in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Warmer with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 105 in the afternoon. .TUESDAY NIGHT...Showers and thunderstorms likely in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows around 70. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent. Heat index values up to 100 early in the evening. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Hot with highs in the mid 90s. Southeast winds around 5 mph, becoming southwest around 5 mph in the afternoon. Chance of rain 20 percent. Heat index values up to 103. .WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 70. Highs in the lower 90s. Heat index values up to 100. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs around 90. Lows in the mid 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. $$ ILZ079-MOZ075-141800- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 523 AM CDT Mon Sep 14 2026 .TODAY...Sunny. Highs in the upper 80s. East winds 5 to 10 mph. .TONIGHT...Mostly clear. Lows in the upper 60s. Southeast winds 5 to 10 mph. .TUESDAY...Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 109 in the afternoon. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 40 percent. Heat index values up to 102 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 106. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 70. Highs in the lower 90s. .SATURDAY...Sunny. Highs in the lower 90s. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. $$ MOZ059-062-072-073-141800- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 523 AM CDT Mon Sep 14 2026 .TODAY...Sunny. Highs in the upper 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 106. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows around 70. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. .WEDNESDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 105. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 100. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Lows around 70. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s. .SATURDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 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. $$ ILZ102-MOZ065-141800- Monroe IL-Jefferson MO- 523 AM CDT Mon Sep 14 2026 .TODAY...Sunny. Highs in the upper 80s. Southeast winds 5 to 10 mph. .TONIGHT...Mostly clear. Lows around 70. Southeast winds 5 to 10 mph. .TUESDAY...Sunny. A chance of thunderstorms with a slight chance of showers in the afternoon. Warmer with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 110. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. Heat index values up to 102 early in the evening. .WEDNESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 70. Highs in the lower 90s. Heat index values up to 100. .SATURDAY...Sunny. Highs in the lower 90s. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. $$