Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
216 FPUS53 KLSX 150804 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 304 AM CDT Wed Jul 15 2026 ILZ100-101-MOZ061-063-064-151600- 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 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs in the lower 90s. East winds around 5 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs around 90. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 101. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. .FRIDAY...Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs around 90. West winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 101. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. A slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Hot. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Mostly sunny. Highs around 90. $$ MOZ042-049-050-151600- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs around 90. Northeast winds around 5 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming southwest around 5 mph in the afternoon. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. .SUNDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. .MONDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .TUESDAY...Sunny. Highs around 90. $$ MOZ041-047-048-151600- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs in the lower 90s. Northeast winds around 5 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Mostly sunny. Showers and thunderstorms likely in the afternoon. Highs around 90. Light and variable winds, becoming southwest around 5 mph in the afternoon. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent. .FRIDAY...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 lower 90s. Southwest winds 5 to 10 mph. Chance of rain 40 percent. .FRIDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .MONDAY AND MONDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms. Hot. Highs in the upper 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Sunny. Highs in the lower 90s. $$ ILZ095>097-MOZ018-019-026-027-034>036-151600- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 304 AM CDT Wed Jul 15 2026 .TODAY...Patchy fog this morning. Sunny. Highs in the lower 90s. Light and variable winds, becoming east around 5 mph this afternoon. .TONIGHT...Mostly clear. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 50 percent. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 40 percent. .FRIDAY...Mostly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs around 90. West winds 5 to 10 mph. Chance of rain 60 percent. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 20 percent. .SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 100. .MONDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100. .MONDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .TUESDAY...Sunny. Highs in the upper 80s. $$ ILZ069-070-074-151600- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs around 90. East winds around 5 mph. Heat index values up to 100. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 40 percent. Heat index values up to 101. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms 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 40 percent. .FRIDAY...Mostly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 70 percent. Heat index values up to 100. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. A chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. .SATURDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105 in the afternoon. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .SUNDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Mostly sunny. Highs in the upper 80s. $$ MOZ074-084-085-099-151600- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 304 AM CDT Wed Jul 15 2026 .TODAY...Mostly sunny. A slight chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. Highs in the mid 80s. East winds around 5 mph. Chance of rain 70 percent. .TONIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Patchy fog after midnight. Humid with lows in the upper 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. .THURSDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the mid 80s. Light and variable winds, becoming southwest around 5 mph in the afternoon. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy. Thunderstorms likely with a chance of showers 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. .FRIDAY...Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. West winds around 5 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. .SATURDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. .SATURDAY NIGHT...Mostly clear. Lows in the lower 70s. .SUNDAY...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. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...Partly cloudy in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .TUESDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. $$ MOZ051-052-060-151600- Montgomery MO-Lincoln MO-Warren MO- 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs in the lower 90s. Northeast winds around 5 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Sunny with a slight chance of showers and thunderstorms in the morning, then partly sunny with showers and thunderstorms likely in the afternoon. Humid with highs around 90. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 60 percent. Heat index values up to 100. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Light and variable winds. Chance of rain 50 percent. .FRIDAY...Mostly sunny with a chance of showers and thunderstorms. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY...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. .SUNDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening. .MONDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .TUESDAY...Sunny. Highs around 90. $$ ILZ058-059-098-099-151600- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs in the lower 90s. Northeast winds around 5 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 50 percent. Heat index values up to 100. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. .FRIDAY...Mostly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the lower 70s. Heat index values up to 105. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Sunny. Highs in the upper 80s. $$ ILZ060-064-065-151600- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. Highs around 90. East winds around 5 mph. .TONIGHT...Mostly clear. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. .THURSDAY...Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 40 percent. Heat index values up to 100. .THURSDAY 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 40 percent. .FRIDAY...Showers likely with a chance of thunderstorms. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 70 percent. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows in the lower 70s. Highs around 90. Heat index values up to 100. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Sunny. Highs in the upper 80s. $$ ILZ079-MOZ075-151600- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 304 AM CDT Wed Jul 15 2026 .TODAY...Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the upper 80s. East winds around 5 mph. Chance of rain 50 percent. .TONIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .THURSDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 50 percent. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent. .FRIDAY...Mostly 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 upper 80s. West winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 100. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY...Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .SUNDAY...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 105. .SUNDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Hot. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .TUESDAY...Mostly sunny. Highs around 90. $$ MOZ059-062-072-073-151600- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 304 AM CDT Wed Jul 15 2026 .TODAY...Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the upper 80s. East winds around 5 mph. Chance of rain 50 percent. .TONIGHT...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. .THURSDAY...Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming southwest around 5 mph in the afternoon. Chance of rain 70 percent. .THURSDAY NIGHT...Partly cloudy. Showers and thunderstorms likely in the evening. Humid with lows around 70. Light and variable winds. Chance of rain 70 percent. .FRIDAY...Mostly 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 upper 80s. West winds around 5 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 100. .SUNDAY...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. .SUNDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening. .MONDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .TUESDAY...Mostly sunny. Highs in the lower 90s. $$ ILZ102-MOZ065-151600- Monroe IL-Jefferson MO- 304 AM CDT Wed Jul 15 2026 .TODAY...Sunny. A slight chance of showers and thunderstorms this afternoon. Highs around 90. East winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .THURSDAY...Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 50 percent. Heat index values up to 101. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent. .FRIDAY...Mostly 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 upper 80s. West winds around 5 mph. Chance of rain 50 percent. Heat index values up to 101. .FRIDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 70s. Chance of rain 20 percent. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY...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 105. .SUNDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index values up to 105 early in the evening. .MONDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .TUESDAY...Mostly sunny. Highs in the lower 90s. $$