Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
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000 FPUS53 KLSX 100338 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 1037 PM CDT Tue Jun 9 2026 ILZ100-101-MOZ061-063-064-101100- 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 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the mid 70s. South winds around 5 mph. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly cloudy after midnight. Lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 40 percent. Heat index values up to 100 early in the evening. .THURSDAY...Sunny with highs in the mid 90s. South winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 106. .THURSDAY NIGHT...Showers with a chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph after midnight. Chance of rain 80 percent. Heat index values up to 104 early in the evening. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the mid 80s. Lows in the mid 60s. .SATURDAY...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 mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 70 percent. .SUNDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the evening. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs around 80. Chance of rain 20 percent. .MONDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows around 60. Chance of rain 20 percent. .TUESDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 80. Chance of rain 20 percent. $$ MOZ042-049-050-101100- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming south 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 50 percent. .THURSDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Breezy with highs around 90. Southwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 50 percent. Heat index values up to 102. .THURSDAY NIGHT...Showers with thunderstorms likely in the evening, then partly cloudy with a slight chance of showers after midnight. Cooler with lows in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph, becoming northwest around 5 mph after midnight. Chance of rain 90 percent. .FRIDAY...Sunny. Highs in the lower 80s. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent. .SATURDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 70 percent. .SUNDAY...Mostly cloudy with a chance of thunderstorms. A chance of showers. Highs around 80. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Lows around 60. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A 20 percent chance of showers. Lows in the upper 50s. Highs in the upper 70s. $$ MOZ041-047-048-101100- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs in the lower 90s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. Heat index values up to 105 in the afternoon. .THURSDAY NIGHT...Showers with thunderstorms likely in the evening, then partly cloudy after midnight. Cooler with lows in the lower 60s. West winds 10 to 15 mph with gusts up to 30 mph, becoming northwest around 5 mph after midnight. Chance of rain 90 percent. .FRIDAY...Sunny. Highs in the lower 80s. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent. .SATURDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent. .SATURDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 80 percent. .SUNDAY...Mostly cloudy with a chance of thunderstorms. A chance of showers. Highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 40 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A 20 percent chance of showers. Lows in the upper 50s. Highs in the upper 70s. $$ ILZ095>097-MOZ018-019-026-027-034>036-101100- 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 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny with a chance of showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers. Lows in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 35 mph, becoming south 5 to 10 mph with gusts up to 25 mph after midnight. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs around 90. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. Heat index values up to 101. .THURSDAY NIGHT...Showers with thunderstorms likely in the evening, then partly cloudy after midnight. Cooler with lows in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph, becoming northwest around 5 mph with gusts up to 20 mph after midnight. Chance of rain 90 percent. .FRIDAY...Sunny. Highs in the lower 80s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 60s. .SATURDAY...Mostly 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 mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 70 percent. .SUNDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 40 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT...Partly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent. .TUESDAY...Sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. $$ ILZ069-070-074-101100- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. A slight chance of showers and thunderstorms late this evening. Lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY...Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph. Heat index values up to 102. .WEDNESDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .THURSDAY...Sunny with highs in the lower 90s. Southwest winds 15 to 20 mph. Heat index values up to 104. .THURSDAY NIGHT...Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers, mainly in the evening. Lows around 70. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming west 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 80 percent. Heat index values up to 102 early in the evening. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the mid 80s. Lows in the lower 60s. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent. .SUNDAY...Showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the evening. Lows in the mid 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs around 80. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows around 60. Highs in the upper 70s. Chance of rain 20 percent. $$ MOZ074-084-085-099-101100- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 103. .THURSDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming west 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 90 percent. Heat index values up to 100 early in the evening. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Mostly clear. A slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent. .SATURDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT AND SUNDAY...Showers likely with a chance of thunderstorms. Lows in the upper 60s. Highs in the lower 80s. Chance of rain 70 percent. .SUNDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs around 80. Chance of rain 20 percent. $$ MOZ051-052-060-101100- Montgomery MO-Lincoln MO-Warren MO- 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph. .WEDNESDAY...Mostly sunny. Humid with highs around 90. Southwest winds 10 to 15 mph with gusts up to 30 mph. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds 10 to 15 mph, becoming south around 5 mph after midnight. Chance of rain 40 percent. .THURSDAY...Sunny. A chance of thunderstorms with a slight chance of showers in the afternoon. Humid with highs in the lower 90s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 50 percent. Heat index values up to 104. .THURSDAY NIGHT...Showers with a chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. West winds 10 to 15 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 80 percent. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the lower 80s. Lows in the lower 60s. .SATURDAY...Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 70 percent. .SUNDAY...Mostly cloudy 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 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Lows around 60. Chance of rain 40 percent. .MONDAY...Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 50s. Chance of rain 20 percent. .TUESDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. $$ ILZ058-059-098-099-101100- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Near steady temperature in the upper 70s. South winds 5 to 10 mph. .WEDNESDAY...Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 70s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY...Sunny with highs in the lower 90s. South winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 103. .THURSDAY NIGHT...Showers with a chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 80 percent. .FRIDAY...Sunny, cooler with highs in the lower 80s. .FRIDAY NIGHT...Clear. Lows in the lower 60s. .SATURDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 40 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 50s. Chance of rain 20 percent. .TUESDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. $$ ILZ060-064-065-101100- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. Southwest winds around 5 mph. .WEDNESDAY...Sunny with highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY...Sunny with highs in the lower 90s. Southwest winds 15 to 20 mph. Heat index values up to 102. .THURSDAY NIGHT...Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers, mainly in the evening. Lows in the upper 60s. Southwest winds 15 to 20 mph, becoming west 5 to 10 mph after midnight. Chance of rain 80 percent. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the lower 80s. Lows in the lower 60s. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the mid 60s. Chance of rain 50 percent. .SUNDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Chance of rain 20 percent. $$ ILZ079-MOZ075-101100- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY...Sunny with highs in the lower 90s. South winds 5 to 10 mph, increasing to 15 to 20 mph in the afternoon. Heat index values up to 105. .THURSDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming west 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 80 percent. Heat index values up to 103 early in the evening. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 60s. .SATURDAY...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 mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 60 percent. .SUNDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 70 percent. .SUNDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs around 80. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ059-062-072-073-101100- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds around 5 mph. Gusts up to 20 mph. .WEDNESDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. .THURSDAY...Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Heat index values up to 104. .THURSDAY NIGHT...Showers with a chance of thunderstorms in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming northwest around 5 mph after midnight. Chance of rain 90 percent. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20 percent. .SATURDAY...Mostly 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 mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT AND SUNDAY...Showers likely with a chance of thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 70 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Chance of rain 50 percent. .MONDAY...Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the upper 70s. Chance of rain 40 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Chance of rain 20 percent. $$ ILZ102-MOZ065-101100- Monroe IL-Jefferson MO- 1038 PM CDT Tue Jun 9 2026 .OVERNIGHT...Mostly clear. Lows in the lower 70s. South winds around 5 mph. .WEDNESDAY...Sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 102. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. .THURSDAY...Sunny with highs in the mid 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 106. .THURSDAY NIGHT...Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers, mainly in the evening. Lows in the upper 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming west 5 to 10 mph after midnight. Chance of rain 80 percent. Heat index values up to 104 early in the evening. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the mid 80s. Lows in the lower 60s. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. .SATURDAY NIGHT AND SUNDAY...Showers likely with a chance of thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 70 percent. .SUNDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 60s. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs around 80. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs around 80. Chance of rain 20 percent. $$