


Zone Forecast Product
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
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988 FPUS53 KLSX 220939 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 439 AM CDT Tue Jul 22 2025 ILZ100-221700- Madison IL- Including the cities of Alton and Edwardsville 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs around 90. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 103 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 112. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 109 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 30 percent. Heat index values up to 105. .FRIDAY NIGHT AND SATURDAY...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. .SATURDAY 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. .SUNDAY...Mostly sunny. Highs in the lower 90s. Heat index values up to 110. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ ILZ101-MOZ061-063-064-221700- Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Belleville, Cahokia, Saint Charles, and Saint Louis 439 AM CDT Tue Jul 22 2025 ...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 111. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 114. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 112. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY THROUGH SATURDAY...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny. Highs in the mid 90s. Heat index values up to 110. .SUNDAY NIGHT AND MONDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 115. $$ MOZ042-049-050-221700- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Partly sunny. Highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 108. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. Southeast winds 5 to 10 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 104. .WEDNESDAY NIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 104 early in the evening. .THURSDAY...Sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 104. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY...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. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ MOZ041-047-048-221700- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Partly sunny. Highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 108. .TONIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 106. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 105. .THURSDAY NIGHT...Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY THROUGH MONDAY...Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. $$ ILZ095>097-MOZ018-019-026-027-034>036-221700- 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 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107 this afternoon. .TONIGHT...Partly cloudy. Humid with lows in the mid 70s. Southeast winds 5 to 10 mph. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 108. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 106. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 40 percent. Heat index values up to 105. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ ILZ069-074-221700- Clinton IL-Washington IL- 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs around 90. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 106. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 104 early in the evening. .WEDNESDAY...Sunny with highs in the mid 90s. South winds around 5 mph. Heat index values up to 113. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 110 early in the evening. .THURSDAY...Sunny with highs in the mid 90s. South winds around 5 mph. Heat index values up to 112. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 105. .FRIDAY 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. .SATURDAY...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 110. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .SUNDAY...Mostly sunny. Highs in the lower 90s. Heat index values up to 110. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ ILZ070-221700- Marion IL- Including the cities of Centralia and Salem 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 7 PM CDT THURSDAY... .TODAY...Patchy fog this morning. Mostly cloudy. Highs in the upper 80s. East winds around 5 mph. Heat index values up to 103. .TONIGHT...Partly cloudy. Humid with lows in the mid 70s. Southeast winds around 5 mph. Heat index values up to 101 early in the evening. .WEDNESDAY...Sunny with highs in the lower 90s. South winds around 5 mph. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .THURSDAY...Sunny with highs in the lower 90s. South winds around 5 mph. Heat index values up to 108. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms. Highs around 90. Lows in the mid 70s. Chance of rain 30 percent. Heat index values up to 105. .SATURDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 40 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. A slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs in the lower 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 110. $$ MOZ074-084-085-099-221700- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Partly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the mid 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the mid 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Heat index values up to 104 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 108. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the lower 70s. South winds around 5 mph. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 107. .THURSDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening. .SATURDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 110. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ MOZ051-052-060-221700- Montgomery MO-Lincoln MO-Warren MO- 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Mostly cloudy this morning, then partly sunny with a slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 109. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 108. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy with 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 110. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ ILZ098-221700- Calhoun IL- 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the upper 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 109. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 108. .THURSDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. Heat index values up to 100. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 90s. Heat index values up to 110. $$ ILZ058-059-099-221700- Greene IL-Macoupin IL-Jersey IL- 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs in the upper 80s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 103. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 101 early in the evening. .WEDNESDAY...Sunny with highs in the mid 90s. South winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 105 early in the evening. .THURSDAY...Sunny with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 106. .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 100 early in the evening. .FRIDAY...Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs around 90. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .SUNDAY THROUGH MONDAY...Mostly clear. Highs in the lower 90s. Lows in the mid 70s. Heat index values up to 105. $$ ILZ060-064-065-221700- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 7 PM CDT THURSDAY... .TODAY...Patchy fog this morning. Mostly cloudy. Highs in the upper 80s. Southeast winds around 5 mph. Heat index values up to 103. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. .WEDNESDAY...Sunny with highs in the lower 90s. South winds around 5 mph. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .THURSDAY...Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 109. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .FRIDAY THROUGH SATURDAY...Partly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 105. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. .SUNDAY...Mostly sunny. Highs around 90. Heat index values up to 105. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105. $$ ILZ079-MOZ075-221700- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 109. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 106 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 114. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 112. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY THROUGH SATURDAY NIGHT...Partly cloudy with 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 110. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 115. $$ MOZ062-221700- Franklin MO- Including the cities of Washington, Union, and Sullivan 439 AM CDT Tue Jul 22 2025 ...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Partly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 109. .WEDNESDAY NIGHT...Clear with lows in the mid 70s. South winds around 5 mph. Heat index values up to 108 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105. .SATURDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. $$ MOZ059-072-073-221700- Gasconade MO-Crawford MO-Washington MO- 439 AM CDT Tue Jul 22 2025 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Partly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the mid 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108. .TONIGHT...Partly cloudy in the evening, then clearing. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 106. .WEDNESDAY NIGHT...Clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 104 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 108. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 100 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. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening. .SATURDAY...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 110. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110. .SUNDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. Heat index values up to 105 early in the evening. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ ILZ102-MOZ065-221700- Monroe IL-Jefferson MO- 439 AM CDT Tue Jul 22 2025 ...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY... .TODAY...Mostly cloudy. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 111. .TONIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. South winds around 5 mph. Heat index values up to 115. .WEDNESDAY NIGHT...Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph. Heat index values up to 111 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 113. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY THROUGH SATURDAY...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 115. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 115. $$