Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
400 FPUS53 KLSX 170955 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 454 AM CDT Tue Jun 17 2025 ILZ100-101-171700- Madison IL-Saint Clair IL- Including the cities of Alton, Edwardsville, Belleville, and Cahokia 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Partly sunny this morning, then clearing. Patchy fog this morning. Highs in the upper 80s. South winds around 5 mph. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. West winds 5 to 10 mph. Chance of rain 40 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 60s. Highs around 90. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. $$ MOZ061-063-064-171700- Saint Charles MO-Saint Louis MO-Saint Louis City MO- Including the cities of Saint Charles and Saint Louis 454 AM CDT Tue Jun 17 2025 .TODAY...Partly sunny this morning, then clearing. Patchy fog this morning. Highs around 90. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of rain 30 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. Southwest winds 10 to 15 mph, becoming west around 5 mph after midnight. Chance of rain 30 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 60s. Highs in the lower 90s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. $$ MOZ042-049-050-171700- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 454 AM CDT Tue Jun 17 2025 .TODAY...Mostly sunny. Highs in the upper 80s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 50 percent. .WEDNESDAY...Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 60s. West winds 10 to 15 mph, diminishing to around 5 mph after midnight. Chance of rain 20 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs around 90. .FRIDAY NIGHT THROUGH SUNDAY...Clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. $$ MOZ041-047-048-171700- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 454 AM CDT Tue Jun 17 2025 .TODAY...Mostly sunny. Highs in the upper 80s. Southwest winds 5 to 10 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 70 percent. .WEDNESDAY...A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 60s. West winds 5 to 10 mph. .JUNETEENTH...Sunny. Highs in the mid 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the lower 90s. .FRIDAY NIGHT THROUGH SUNDAY...Clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. $$ ILZ095>097-MOZ018-019-026-027-034>036-171700- 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 454 AM CDT Tue Jun 17 2025 .TODAY...Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 70 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 60s. West winds 5 to 10 mph. Chance of rain 20 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs around 90. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY THROUGH SUNDAY...Clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. $$ ILZ069-070-074-171700- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Mostly cloudy with a slight chance of showers and thunderstorms this morning, then mostly sunny this afternoon. Warmer with highs in the mid 80s. South winds around 5 mph. Chance of rain 20 percent. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY...Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 60s. Highs in the upper 80s. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .SUNDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .MONDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ074-084-085-099-171700- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Patchy fog this morning. Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph. .WEDNESDAY...Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs around 90. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100. $$ MOZ051-052-060-171700- Montgomery MO-Lincoln MO-Warren MO- 454 AM CDT Tue Jun 17 2025 .TODAY...Patchy fog this morning. Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 20 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs around 90. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY THROUGH SUNDAY...Clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. $$ ILZ058-059-098-099-171700- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 454 AM CDT Tue Jun 17 2025 .TODAY...Partly sunny this morning, then clearing. Highs in the upper 80s. South winds around 5 mph. .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Showers and thunderstorms. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 40 percent. .JUNETEENTH...Sunny. Highs in the lower 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the upper 80s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. $$ ILZ064-065-171700- Bond IL-Fayette IL- Including the city of Vandalia 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Mostly cloudy this morning, then clearing. Highs in the mid 80s. South winds around 5 mph. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY...Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph. Chance of rain 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .JUNETEENTH...Sunny. Highs in the lower 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the upper 80s. .FRIDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. $$ ILZ060-171700- Montgomery IL- Including the city of Litchfield 454 AM CDT Tue Jun 17 2025 .TODAY...Partly sunny this morning, then clearing. Highs in the mid 80s. South winds around 5 mph. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Showers and thunderstorms. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 40 percent. .JUNETEENTH...Sunny. Highs in the lower 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the upper 80s. .FRIDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105. $$ ILZ079-MOZ075-171700- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Mostly sunny. Warmer with highs in the upper 80s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph. .WEDNESDAY...Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 60s. Highs around 90. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .SATURDAY NIGHT AND SUNDAY...Clear, hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. $$ MOZ059-062-171700- Gasconade MO-Franklin MO- Including the cities of Washington, Union, and Sullivan 454 AM CDT Tue Jun 17 2025 .TODAY...Patchy fog this morning. Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph. .TONIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows around 70. South winds around 5 mph. Gusts up to 20 mph after midnight. Chance of rain 40 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 30 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. West winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the lower 90s. .FRIDAY NIGHT THROUGH SUNDAY...Clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 100. $$ MOZ072-073-171700- Crawford MO-Washington MO- 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Patchy fog this morning. Mostly sunny. Warmer with highs in the upper 80s. Light and variable winds, becoming southwest around 5 mph this afternoon. .TONIGHT...Partly cloudy. Lows in the lower 70s. South winds around 5 mph. Gusts up to 20 mph after midnight. .WEDNESDAY...Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. West winds 5 to 10 mph. Chance of rain 40 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s. Highs in the lower 90s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. .SATURDAY THROUGH SUNDAY...Clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 100. $$ ILZ102-MOZ065-171700- Monroe IL-Jefferson MO- 454 AM CDT Tue Jun 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...Partly sunny this morning, then clearing. Patchy fog this morning. Warmer with highs around 90. Light and variable winds, becoming southwest around 5 mph this afternoon. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent. .WEDNESDAY...Partly sunny with a chance of showers and thunderstorms in the morning, then mostly cloudy with showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. West winds 5 to 10 mph. Chance of rain 40 percent. .JUNETEENTH...Sunny. Highs in the mid 80s. Northwest winds around 5 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the upper 60s. Highs in the lower 90s. Heat index values up to 100. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. .SATURDAY AND SATURDAY NIGHT...Clear, hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. .SUNDAY THROUGH MONDAY...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. $$