Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
337 FPUS53 KLSX 061623 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 1123 AM CDT Sat Jun 6 2026 ILZ100-101-MOZ061-063-064-070000- 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 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Partly sunny early, then becoming mostly cloudy. A chance of showers and thunderstorms. Near steady temperature in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southeast winds 10 to 15 mph. Chance of rain 40 percent. .SUNDAY NIGHT...Mostly cloudy with showers likely with a chance of thunderstorms. Lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...A chance of thunderstorms. Showers with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Thunderstorms likely. Showers likely. Lows in the lower 70s. Chance of rain 70 percent. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105 in the afternoon. .TUESDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. .THURSDAY...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 110 in the afternoon. .THURSDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...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. $$ MOZ042-049-050-070000- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy. A slight chance of showers and thunderstorms early, then a chance of showers and thunderstorms. Near steady temperature in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 40 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 60 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY...Becoming partly sunny in the afternoon. A chance of thunderstorms. Showers, mainly in the morning. Highs in the mid 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs around 90. Chance of rain 20 percent. Heat index values up to 105 in the afternoon. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .THURSDAY...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 90s. Chance of rain 30 percent. Heat index values up to 105 in the afternoon. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...Mostly 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. $$ MOZ041-047-048-070000- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy. A slight chance of showers and thunderstorms early, then a chance of showers and thunderstorms. Near steady temperature in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph, becoming southeast after midnight. Chance of rain 40 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY...Becoming partly sunny in the afternoon. A chance of thunderstorms. Showers, mainly in the morning. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. .TUESDAY...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 110 in the afternoon. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. .THURSDAY...Sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 105 in the afternoon. .THURSDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...Mostly 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 in the afternoon. $$ ILZ095>097-MOZ018-019-026-027-034>036-070000- 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 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy early, then partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 40 percent. .SUNDAY...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY...Becoming partly sunny in the afternoon. A chance of thunderstorms. Showers, mainly in the morning. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent. .TUESDAY...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 in the afternoon. .TUESDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .THURSDAY...Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. 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 30 percent. Heat index values up to 105 early in the evening. .FRIDAY...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. Heat index values up to 100. $$ ILZ069-070-074-070000- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Partly sunny. A slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 60 percent. .MONDAY...Showers with a chance of thunderstorms. Humid with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 70s. Chance of rain 90 percent. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...Mostly clear with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 40 percent. Heat index values up to 100 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .THURSDAY...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. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. $$ MOZ074-084-085-099-070000- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Near steady temperature in the lower 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .SUNDAY...Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers likely. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Showers with a chance of thunderstorms. Humid with highs in the mid 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Lows in the lower 70s. Chance of rain 70 percent. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs around 90. Chance of rain 20 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 105. .THURSDAY AND THURSDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. $$ MOZ051-052-060-070000- Montgomery MO-Lincoln MO-Warren MO- 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Partly sunny early, then becoming mostly cloudy. A chance of showers and thunderstorms. Near steady temperature in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. South winds around 5 mph. Chance of rain 30 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 80 percent. .MONDAY...Becoming partly sunny in the afternoon. A chance of thunderstorms. Showers, mainly in the morning. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Showers likely. Thunderstorms likely, mainly in the evening. Lows in the upper 60s. Chance of rain 70 percent. .TUESDAY...Mostly 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. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 110. .THURSDAY AND THURSDAY NIGHT...Mostly clear. 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. .FRIDAY...Mostly 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. $$ ILZ058-059-098-099-070000- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Partly sunny early, then mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the upper 60s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southeast winds 5 to 10 mph. Chance of rain 40 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Showers with a chance of thunderstorms. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain near 100 percent. .MONDAY NIGHT...Showers and thunderstorms likely, mainly in the evening. Lows in the upper 60s. Chance of rain 70 percent. .TUESDAY...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 lower 90s. Chance of rain 50 percent. Heat index values up to 100 in the afternoon. .TUESDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .THURSDAY...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. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening. .FRIDAY...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. $$ ILZ060-064-065-070000- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Partly sunny. A slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows around 70. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 40 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. .MONDAY...A chance of thunderstorms. Showers. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Showers with thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight. Lows around 70. Chance of rain 90 percent. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent. .TUESDAY NIGHT...Mostly clear with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. .THURSDAY...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. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 100 early in the evening. .FRIDAY...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. $$ ILZ079-MOZ075-070000- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. South winds around 5 mph. Chance of rain 20 percent. .SUNDAY...Mostly cloudy with a slight chance of showers in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 40 percent. .SUNDAY NIGHT...Showers likely with a chance of thunderstorms. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...Showers with a chance of thunderstorms. Humid with highs in the mid 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .MONDAY NIGHT...Showers likely. Thunderstorms likely, mainly in the evening. Lows around 70. Chance of rain 70 percent. .TUESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105. .TUESDAY NIGHT...Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105. .THURSDAY AND THURSDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. $$ MOZ059-062-072-073-070000- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers early, then a chance of showers. Near steady temperature in the lower 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 60s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. .SUNDAY NIGHT...Showers likely with a chance of thunderstorms. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...A chance of thunderstorms. Showers with highs in the mid 80s. South winds around 5 mph. Gusts up to 20 mph in the morning. Chance of rain 80 percent. .MONDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent. .TUESDAY...Mostly 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. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105. .THURSDAY AND THURSDAY NIGHT...Mostly clear. 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. .FRIDAY...Mostly 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. $$ ILZ102-MOZ065-070000- Monroe IL-Jefferson MO- 1123 AM CDT Sat Jun 6 2026 .THIS AFTERNOON...Mostly cloudy. A chance of showers and thunderstorms. Near steady temperature in the mid 80s. Southwest winds around 5 mph. Chance of rain 30 percent. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows around 70. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. .SUNDAY...Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southeast winds 5 to 10 mph. Chance of rain 30 percent. .SUNDAY NIGHT...Showers likely with a chance of thunderstorms. Lows around 70. Southeast winds 5 to 10 mph. Chance of rain 70 percent. .MONDAY...A chance of thunderstorms. Showers with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 90 percent. .MONDAY NIGHT...Showers likely. Thunderstorms likely, mainly in the evening. Lows in the lower 70s. Chance of rain 70 percent. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105 in the afternoon. .TUESDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. .THURSDAY THROUGH FRIDAY...Mostly clear with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. $$