Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
655 FPUS53 KLSX 150058 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 757 PM CDT Fri Aug 14 2026 ILZ100-101-MOZ061-063-064-150800- 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 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the upper 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 110. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 60s. Highs in the upper 80s. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows around 70. Chance of rain 40 percent. Heat index values up to 100 early in the evening. .THURSDAY...Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the mid 80s. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ049-050-150800- Osage MO-Callaway MO- Including the city of Fulton 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear this evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 105. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows around 70. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 103 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 80s. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY AND TUESDAY NIGHT...Mostly clear. Highs around 90. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Highs in the lower 90s. Heat index values up to 100. .WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Highs in the lower 80s. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ042-150800- Audrain MO- Including the city of Mexico 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southeast winds 5 to 10 mph, becoming south after midnight. Chance of rain 30 percent. Heat index values up to 103 early this evening. .SATURDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 102. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Northwest winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 40 percent. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 80s. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. .WEDNESDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly cloudy 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 upper 60s. Chance of rain 30 percent. .THURSDAY...Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning. Highs around 80. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 80. Chance of rain 20 percent. $$ MOZ041-047-048-150800- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy this evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 106. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 104 early in the evening. .SUNDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 in the afternoon. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 40 percent. Heat index values up to 103 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the upper 80s. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY...Sunny. Highs in the lower 90s. .TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs in the lower 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Mostly cloudy 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 around 70. Chance of rain 30 percent. .THURSDAY...Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ095-096-MOZ018-019-150800- Adams IL-Brown IL-Knox MO-Lewis MO- Including the cities of Quincy and Mount Sterling 757 PM CDT Fri Aug 14 2026 .TONIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the lower 70s. East winds 5 to 10 mph, becoming southeast after midnight. Chance of rain 70 percent. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the mid 90s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain 50 percent. Heat index values up to 103. .SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. West winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 102 early in the evening. .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. Humid with highs in the upper 80s. Northwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 100. .SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 20 percent. .MONDAY...Sunny. Highs in the mid 80s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 30 percent. .THURSDAY...Partly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 80. Chance of rain 20 percent. $$ MOZ026-027-034-150800- Shelby MO-Marion MO-Monroe MO- Including the city of Hannibal 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SATURDAY... .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 50 percent. Heat index values up to 100 early this evening. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Heat index values up to 102. .SATURDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 102 early in the evening. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Humid with highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 30 percent. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 80s. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. .WEDNESDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent. .THURSDAY...Partly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs around 80. Chance of rain 20 percent. $$ ILZ097-MOZ035-036-150800- Pike IL-Ralls MO-Pike MO- Including the cities of Pittsfield and Bowling Green 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 50 percent. Heat index values up to 101 early this evening. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Humid with highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Heat index values up to 103. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Northwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 103. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Humid with lows in the upper 60s. North winds around 5 mph. Chance of rain 40 percent. Heat index values up to 100 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 80s. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. .WEDNESDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40 percent. .THURSDAY...Partly sunny. A chance of showers in the morning. Highs around 80. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ069-070-074-150800- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear. Lows in the mid 70s. Southeast winds around 5 mph. Heat index values up to 108 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs in the mid 90s. West winds around 5 mph. Heat index values up to 110. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 60s. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Highs in the lower 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows around 70. Chance of rain 40 percent. Heat index values up to 100 early in the evening. .THURSDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent. .THURSDAY NIGHT...A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ074-084-085-099-150800- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 103 early this evening. .SATURDAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 106. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Sunny, hot with highs in the upper 90s. West winds around 5 mph. Heat index values up to 108. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly 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. North winds around 5 mph. Chance of rain 40 percent. Heat index values up to 104 early in the evening. .MONDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Not as warm with highs in the upper 80s. Chance of rain 40 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 60s. Highs around 90. .TUESDAY NIGHT...Mostly clear. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .THURSDAY...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 upper 80s. Chance of rain 30 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 60s. Highs in the mid 80s. Chance of rain 20 percent. $$ MOZ051-060-150800- Montgomery MO-Warren MO- 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy this evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 in the afternoon. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 105 early in the evening. .MONDAY THROUGH TUESDAY...Partly cloudy. Highs in the upper 80s. Lows in the mid 60s. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100. .WEDNESDAY NIGHT...Mostly cloudy 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 upper 60s. Chance of rain 40 percent. .THURSDAY...Partly sunny. A chance of showers in the morning. Cooler with highs in the lower 80s. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ052-150800- Lincoln MO- 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 70s. South winds around 5 mph. Chance of rain 30 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. A chance of showers and thunderstorms in the morning. Hot with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 30 percent. Heat index values up to 104. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 104 early in the evening. .SUNDAY...Partly sunny. Humid with highs in the lower 90s. West winds around 5 mph. Heat index values up to 107. .SUNDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows around 70. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 104 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 80s. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. .WEDNESDAY...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 100. .WEDNESDAY NIGHT...Mostly cloudy 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 upper 60s. Chance of rain 40 percent. .THURSDAY...Partly sunny. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ058-059-098-099-150800- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy this evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 40 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 104. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 103 early in the evening. .SUNDAY...Partly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph. Heat index values up to 104. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 102 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 80s. Lows in the mid 60s. .TUESDAY...Sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 70. .WEDNESDAY...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. .WEDNESDAY NIGHT...Mostly cloudy 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 upper 60s. Chance of rain 30 percent. .THURSDAY...Partly sunny. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ060-064-065-150800- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 757 PM CDT Fri Aug 14 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 103 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 106. .SATURDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 104 early in the evening. .SUNDAY...Mostly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph. Heat index values up to 106. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows around 70. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 103 early in the evening. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 80s. Lows in the mid 60s. .TUESDAY AND TUESDAY NIGHT...Mostly clear. Highs in the mid 80s. Lows in the upper 60s. .WEDNESDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20 percent. Heat index values up to 100. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 40 percent. .THURSDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ079-MOZ075-150800- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 108 early this evening. .SATURDAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 105 early in the evening. .SUNDAY...Sunny, hot with highs in the upper 90s. West winds around 5 mph. Heat index values up to 111. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Not as warm with highs in the upper 80s. Chance of rain 50 percent. .MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY...Mostly sunny. Highs in the upper 80s. .TUESDAY NIGHT...Mostly clear. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .THURSDAY...Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 80s. Chance of rain 30 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 20 percent. $$ MOZ059-062-072-073-150800- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 104 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 106. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 104 early in the evening. .SUNDAY...Mostly sunny. Hot with highs in the mid 90s. West winds around 5 mph. Heat index values up to 108. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Humid with lows around 70. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent. Heat index values up to 105 early in the evening. .MONDAY...Partly 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. Chance of rain 50 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 60s. Chance of rain 20 percent. .TUESDAY...Mostly sunny. Highs in the lower 90s. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105. .WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Highs in the mid 80s. Chance of rain 40 percent. Heat index values up to 100. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ102-MOZ065-150800- Monroe IL-Jefferson MO- 757 PM CDT Fri Aug 14 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT SUNDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny. Hot with highs in the upper 90s. West winds around 5 mph. Heat index values up to 111. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Not as warm with highs in the upper 80s. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the upper 60s. Highs around 90. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows around 70. Chance of rain 30 percent. Heat index values up to 100 early in the evening. .THURSDAY...Partly sunny with a slight chance of showers and thunderstorms. Not as warm with highs in the mid 80s. Chance of rain 20 percent. .THURSDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent. $$