203  
FPUS53 KLSX 150647  
ZFPLSX  
 
ZONE FORECASTS  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
147 AM CDT TUE SEP 15 2026  
 
ILZ100-101-MOZ061-063-064-151400-  
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  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR AND NOT AS COOL. NEAR STEADY TEMPERATURE  
IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP TO  
20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTHWEST WINDS  
5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO  
110.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS.  
SHOWERS LIKELY, MAINLY IN THE EVENING. HUMID WITH LOWS IN THE  
LOWER 70S. EAST WINDS AROUND 5 MPH. CHANCE OF RAIN 70 PERCENT.  
HEAT INDEX VALUES UP TO 104 EARLY IN THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS,  
MAINLY IN THE MORNING. HOT WITH HIGHS IN THE MID 90S. EAST WINDS  
AROUND 5 MPH, BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.  
CHANCE OF RAIN 40 PERCENT. HEAT INDEX VALUES UP TO 105.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS  
AROUND 5 MPH. HEAT INDEX VALUES UP TO 101 EARLY IN THE EVENING.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 70S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
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.    
SUNDAY NIGHT
 
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 60S. CHANCE OF RAIN  
30 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. CHANCE  
OF RAIN 30 PERCENT.  
 

 
 
MOZ049-151400-  
OSAGE MO-  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR AND NOT AS COOL. NEAR STEADY TEMPERATURE  
IN THE UPPER 70S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP TO  
20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HOT WITH HIGHS IN THE UPPER 90S. SOUTHWEST WINDS 5 TO  
10 MPH. CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 106.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH SHOWERS LIKELY WITH A CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLOUDY WITH A CHANCE  
OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.  
HUMID WITH LOWS IN THE LOWER 70S. NORTHEAST WINDS AROUND 5 MPH.  
CHANCE OF RAIN 70 PERCENT. HEAT INDEX VALUES UP TO 101 EARLY IN  
THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. HUMID WITH HIGHS IN THE MID 90S. EAST WINDS AROUND  
5 MPH, BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON. CHANCE OF  
RAIN 40 PERCENT. HEAT INDEX VALUES UP TO 103.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
FRIDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S.    
SATURDAY
 
SUNNY. HIGHS IN THE LOWER 90S.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
MOSTLY 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 UPPER 80S. CHANCE OF  
RAIN 30 PERCENT.    
SUNDAY NIGHT
 
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.  
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE MID 60S.  
CHANCE OF RAIN 40 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 70S. CHANCE OF RAIN  
40 PERCENT.  
 

 
 
MOZ042-050-151400-  
AUDRAIN MO-CALLAWAY MO-  
INCLUDING THE CITIES OF MEXICO AND FULTON  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE MID 70S. SOUTH WINDS 10 TO 15 MPH WITH GUSTS  
UP TO 25 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 10 TO 15 MPH,  
BECOMING WEST 5 TO 10 MPH IN THE AFTERNOON. CHANCE OF RAIN  
50 PERCENT. HEAT INDEX VALUES UP TO 103.    
TUESDAY 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. NORTHEAST WINDS AROUND 5 MPH.  
CHANCE OF RAIN 70 PERCENT.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN MOSTLY SUNNY WITH A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
AROUND 90. EAST WINDS AROUND 5 MPH, BECOMING SOUTH AROUND 5 MPH  
IN THE AFTERNOON. CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP  
TO 100 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER 90S.  
LOWS AROUND 70. HEAT INDEX VALUES UP TO 100.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 70.    
SATURDAY
 
SUNNY. HIGHS IN THE UPPER 80S.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. CHANCE  
OF RAIN 30 PERCENT.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S.  
HIGHS IN THE UPPER 70S. CHANCE OF RAIN 40 PERCENT.  
 

 
 
MOZ047-048-151400-  
MONITEAU MO-COLE MO-  
INCLUDING THE CITY OF JEFFERSON CITY  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE UPPER 70S. SOUTH WINDS 5 TO 10 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HOT WITH HIGHS IN THE UPPER 90S. SOUTHWEST WINDS 5 TO  
10 MPH, BECOMING WEST IN THE AFTERNOON. CHANCE OF RAIN  
50 PERCENT. HEAT INDEX VALUES UP TO 107 IN THE AFTERNOON.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE  
OF THUNDERSTORMS, MAINLY IN THE EVENING. HUMID WITH LOWS IN THE  
LOWER 70S. NORTHEAST WINDS AROUND 5 MPH. CHANCE OF RAIN  
50 PERCENT. HEAT INDEX VALUES UP TO 101 EARLY IN THE EVENING.    
WEDNESDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SUNNY WITH A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HOT WITH HIGHS IN THE  
MID 90S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH IN THE  
AFTERNOON. CHANCE OF RAIN 30 PERCENT. HEAT INDEX VALUES UP TO  
104 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.  
HEAT INDEX VALUES UP TO 101 EARLY IN THE EVENING.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HIGHS IN THE MID 90S.  
LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
MOSTLY 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 UPPER 80S. CHANCE OF  
RAIN 30 PERCENT.    
SUNDAY NIGHT
 
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.  
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE MID 60S.  
CHANCE OF RAIN 40 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 80. CHANCE OF  
RAIN 40 PERCENT.  
 

 
 
MOZ041-151400-  
BOONE MO-  
INCLUDING THE CITY OF COLUMBIA  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE UPPER 70S. SOUTH WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 90S. SOUTH WINDS 5 TO 10 MPH,  
BECOMING WEST IN THE AFTERNOON. CHANCE OF RAIN 50 PERCENT. HEAT  
INDEX VALUES UP TO 105.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A  
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER  
MIDNIGHT. HUMID WITH LOWS IN THE UPPER 60S. NORTHEAST WINDS  
AROUND 5 MPH. CHANCE OF RAIN 70 PERCENT.    
WEDNESDAY
 
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE MORNING. HIGHS IN THE LOWER 90S. EAST WINDS AROUND 5 MPH,  
BECOMING SOUTH IN THE AFTERNOON. CHANCE OF RAIN 40 PERCENT. HEAT  
INDEX VALUES UP TO 102 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HIGHS IN THE LOWER  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 100.    
SATURDAY NIGHT
 
PARTLY CLOUDY. 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.    
SUNDAY
 
MOSTLY 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 MID 80S. CHANCE OF  
RAIN 30 PERCENT.    
SUNDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A  
CHANCE OF SHOWERS. LOWS IN THE MID 60S. 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.  
 

 
 
ILZ095>097-MOZ018-019-026-027-034>036-151400-  
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  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
PARTLY CLOUDY AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE MID 70S. SOUTH WINDS 10 TO 15 MPH WITH GUSTS  
UP TO 25 MPH.    
TUESDAY
 
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO  
10 MPH, BECOMING WEST IN THE AFTERNOON. GUSTS UP TO 25 MPH.  
CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 103.    
TUESDAY NIGHT
 
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.  
LOWS IN THE MID 60S. NORTHEAST WINDS 5 TO 10 MPH. CHANCE OF RAIN  
70 PERCENT.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON.  
HIGHS IN THE UPPER 80S. NORTHEAST WINDS AROUND 5 MPH, BECOMING  
SOUTHEAST IN THE AFTERNOON. CHANCE OF RAIN 50 PERCENT.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT. HUMID WITH LOWS IN THE LOWER 70S.  
SOUTHEAST WINDS AROUND 5 MPH. CHANCE OF RAIN 20 PERCENT.    
THURSDAY
 
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 100.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 70. HIGHS  
AROUND 90.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S.    
SATURDAY
 
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.  
HIGHS IN THE UPPER 80S.    
SATURDAY 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 UPPER 60S. CHANCE  
OF RAIN 30 PERCENT.    
SUNDAY AND SUNDAY NIGHT
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE LOWER 80S.  
LOWS IN THE LOWER 60S. 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.  
 

 
 
ILZ069-070-074-151400-  
CLINTON IL-MARION IL-WASHINGTON IL-  
INCLUDING THE CITIES OF CENTRALIA AND SALEM  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR. NEAR STEADY TEMPERATURE AROUND 70.  
SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.    
TUESDAY
 
SUNNY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTH WINDS  
5 TO 10 MPH. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO  
109.    
TUESDAY 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. EAST  
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.  
CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 104 EARLY IN  
THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE MORNING. HOT WITH HIGHS IN THE MID  
90S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING SOUTHWEST IN THE  
AFTERNOON. CHANCE OF RAIN 40 PERCENT. HEAT INDEX VALUES UP TO  
105.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.  
HEAT INDEX VALUES UP TO 101 EARLY IN THE EVENING.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SATURDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.  
LOWS AROUND 70.    
SUNDAY AND SUNDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. HIGHS AROUND 90. LOWS IN THE MID 60S.  
CHANCE OF RAIN 20 PERCENT.    
MONDAY
 
MOSTLY 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 MID 80S. CHANCE OF  
RAIN 30 PERCENT.  
 

 
 
MOZ074-084-085-099-151400-  
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-  
INCLUDING THE CITY OF FARMINGTON  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR. NEAR STEADY TEMPERATURE IN THE LOWER  
70S. SOUTHEAST WINDS AROUND 5 MPH.    
TUESDAY
 
SUNNY, HOT WITH HIGHS IN THE MID 90S. SOUTH WINDS 5 TO  
10 MPH. HEAT INDEX VALUES UP TO 107.    
TUESDAY NIGHT
 
MOSTLY CLEAR. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 70S. SOUTHEAST  
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.  
CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO 102 EARLY IN  
THE EVENING.    
WEDNESDAY
 
SUNNY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON. HOT WITH HIGHS IN THE MID 90S. SOUTH WINDS  
AROUND 5 MPH. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO  
104.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.    
THURSDAY THROUGH SATURDAY NIGHT
 
MOSTLY CLEAR. HOT. HIGHS IN  
THE MID 90S. LOWS IN THE UPPER 60S. HEAT INDEX VALUES UP TO 100.    
SUNDAY
 
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.    
SUNDAY 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.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. CHANCE  
OF RAIN 40 PERCENT.  
 

 
 
MOZ060-151400-  
WARREN MO-  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP  
TO 20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HOT WITH HIGHS IN THE UPPER 90S. SOUTH WINDS 5 TO  
10 MPH WITH GUSTS UP TO 20 MPH, BECOMING WEST IN THE AFTERNOON.  
CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 108.    
TUESDAY NIGHT
 
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY WITH A SLIGHT  
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. HUMID WITH LOWS IN THE  
UPPER 60S. LIGHT AND VARIABLE WINDS. CHANCE OF RAIN 60 PERCENT.  
HEAT INDEX VALUES UP TO 103 EARLY IN THE EVENING.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN MOSTLY SUNNY WITH A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HUMID WITH  
HIGHS IN THE LOWER 90S. LIGHT AND VARIABLE WINDS, BECOMING SOUTH  
AROUND 5 MPH IN THE AFTERNOON. CHANCE OF RAIN 40 PERCENT. HEAT  
INDEX VALUES UP TO 103 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT AND VARIABLE WINDS,  
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.    
THURSDAY THROUGH FRIDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 70S.    
SATURDAY
 
SUNNY. HIGHS IN THE LOWER 90S.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
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.    
SUNDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 80. CHANCE OF  
RAIN 30 PERCENT.  
 

 
 
MOZ051-052-151400-  
MONTGOMERY MO-LINCOLN MO-  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP  
TO 20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HOT WITH HIGHS IN THE MID 90S. SOUTH WINDS 5 TO  
10 MPH, BECOMING WEST IN THE AFTERNOON. CHANCE OF RAIN  
50 PERCENT. HEAT INDEX VALUES UP TO 107.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A  
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER  
MIDNIGHT. HUMID WITH LOWS IN THE UPPER 60S. NORTHEAST WINDS  
AROUND 5 MPH. CHANCE OF RAIN 70 PERCENT. HEAT INDEX VALUES UP TO  
101 EARLY IN THE EVENING.    
WEDNESDAY
 
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE MORNING. HUMID WITH HIGHS IN THE LOWER 90S. EAST WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON. CHANCE OF RAIN  
40 PERCENT. HEAT INDEX VALUES UP TO 102 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. HUMID WITH LOWS IN THE LOWER 70S. LIGHT AND  
VARIABLE WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
FRIDAY AND FRIDAY NIGHT
 
PARTLY CLOUDY. HIGHS IN THE LOWER 90S.  
LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 100.    
SATURDAY
 
SUNNY. HIGHS IN THE LOWER 90S.    
SATURDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S.  
CHANCE OF RAIN 20 PERCENT.    
SUNDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 60S. CHANCE OF RAIN  
40 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE  
OF RAIN 40 PERCENT.  
 

 
 
ILZ058-059-098-099-151400-  
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR AND NOT AS COOL. NEAR STEADY  
TEMPERATURE IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTH WINDS AROUND  
10 MPH WITH GUSTS UP TO 20 MPH, BECOMING WEST IN THE AFTERNOON.  
CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 105.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 60S. EAST WINDS AROUND 5 MPH.  
CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO 100 EARLY IN  
THE EVENING.    
WEDNESDAY
 
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS,  
MAINLY IN THE MORNING. HIGHS IN THE LOWER 90S. EAST WINDS AROUND  
5 MPH, BECOMING SOUTH IN THE AFTERNOON. CHANCE OF RAIN  
40 PERCENT. HEAT INDEX VALUES UP TO 100 IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR IN THE EVENING, THEN BECOMING  
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLEAR. HOT. HIGHS IN THE  
MID 90S. LOWS AROUND 70. HEAT INDEX VALUES UP TO 100.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.    
FRIDAY NIGHT AND SATURDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S.  
HIGHS IN THE LOWER 90S.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S.    
SUNDAY
 
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.    
SUNDAY NIGHT AND MONDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S.  
HIGHS IN THE LOWER 80S. CHANCE OF RAIN 30 PERCENT.  
 

 
 
ILZ060-065-151400-  
MONTGOMERY IL-FAYETTE IL-  
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA  
147 AM CDT TUE SEP 15 2026  
   
REST OF TONIGHT
 
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE  
UPPER 60S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTHWEST WINDS  
5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO  
105.    
TUESDAY NIGHT
 
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.  
LOWS AROUND 70. EAST WINDS AROUND 5 MPH IN THE EVENING, BECOMING  
LIGHT AND VARIABLE. CHANCE OF RAIN 70 PERCENT. HEAT INDEX VALUES  
UP TO 101 EARLY IN THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS,  
MAINLY IN THE MORNING. HIGHS IN THE MID 90S. EAST WINDS AROUND  
5 MPH, BECOMING SOUTH IN THE AFTERNOON. CHANCE OF RAIN  
50 PERCENT. HEAT INDEX VALUES UP TO 101.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HIGHS IN THE MID 90S.  
LOWS AROUND 70. HEAT INDEX VALUES UP TO 100.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS IN THE UPPER 60S.    
SUNDAY
 
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S. CHANCE OF  
RAIN 20 PERCENT.    
SUNDAY NIGHT AND MONDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS  
IN THE LOWER 80S. CHANCE OF RAIN 30 PERCENT.  
 

 
 
ILZ064-151400-  
BOND IL-  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
MOSTLY CLEAR. NEAR STEADY TEMPERATURE AROUND  
70. SOUTHEAST WINDS 5 TO 10 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTHWEST WINDS  
5 TO 10 MPH. CHANCE OF RAIN 40 PERCENT. HEAT INDEX VALUES UP TO  
107.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLOUDY. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.  
HUMID WITH LOWS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH IN THE  
EVENING, BECOMING LIGHT AND VARIABLE. CHANCE OF RAIN 60 PERCENT.  
HEAT INDEX VALUES UP TO 103 EARLY IN THE EVENING.    
WEDNESDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SUNNY WITH A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HUMID WITH HIGHS IN  
THE MID 90S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH IN THE  
AFTERNOON. CHANCE OF RAIN 40 PERCENT. HEAT INDEX VALUES UP TO  
103.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT AND  
VARIABLE WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS AROUND 70.    
SUNDAY
 
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S. CHANCE OF  
RAIN 20 PERCENT.    
SUNDAY NIGHT AND MONDAY
 
PARTLY CLOUDY. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS  
IN THE LOWER 80S. CHANCE OF RAIN 30 PERCENT.  
 

 
 
ILZ079-MOZ075-151400-  
RANDOLPH IL-SAINTE GENEVIEVE MO-  
INCLUDING THE CITIES OF CHESTER AND SPARTA  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR. NEAR STEADY TEMPERATURE IN THE LOWER  
70S. SOUTH WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.    
TUESDAY
 
SUNNY, HOT WITH HIGHS IN THE UPPER 90S. SOUTH WINDS  
5 TO 10 MPH. HEAT INDEX VALUES UP TO 110.    
TUESDAY NIGHT
 
PARTLY 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 IN THE LOWER  
70S. SOUTHEAST WINDS AROUND 5 MPH. CHANCE OF RAIN 40 PERCENT.  
HEAT INDEX VALUES UP TO 104 EARLY IN THE EVENING.    
WEDNESDAY
 
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HOT WITH HIGHS IN THE MID 90S. SOUTH WINDS AROUND  
5 MPH. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO 106.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH. HEAT INDEX VALUES UP TO 100 EARLY IN THE  
EVENING.    
THURSDAY THROUGH SATURDAY NIGHT
 
MOSTLY CLEAR. HOT. HIGHS IN  
THE MID 90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SUNDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 90. CHANCE  
OF RAIN 20 PERCENT.    
SUNDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.    
MONDAY
 
MOSTLY 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 80S. CHANCE OF  
RAIN 40 PERCENT.  
 

 
 
MOZ059-062-072-073-151400-  
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-  
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR. NEAR STEADY TEMPERATURE IN THE MID 70S.  
SOUTH WINDS 5 TO 10 MPH.    
TUESDAY
 
SUNNY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HOT WITH HIGHS IN THE UPPER 90S.  
SOUTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT. HEAT  
INDEX VALUES UP TO 108.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE  
OF THUNDERSTORMS, MAINLY IN THE EVENING. LOWS IN THE LOWER 70S.  
EAST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND  
VARIABLE. CHANCE OF RAIN 50 PERCENT. HEAT INDEX VALUES UP TO  
102 EARLY IN THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HUMID WITH HIGHS IN THE MID 90S.  
SOUTH WINDS AROUND 5 MPH. CHANCE OF RAIN 40 PERCENT. HEAT INDEX  
VALUES UP TO 104.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH.    
THURSDAY
 
SUNNY, HOT WITH HIGHS IN THE MID 90S. HEAT INDEX  
VALUES UP TO 105.    
THURSDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN BECOMING  
MOSTLY CLEAR. LOWS IN THE LOWER 70S.    
FRIDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HIGHS IN THE MID 90S.  
LOWS AROUND 70. HEAT INDEX VALUES UP TO 100.    
SATURDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLEAR  
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER  
60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY
 
MOSTLY 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 UPPER 80S. CHANCE OF  
RAIN 30 PERCENT.    
SUNDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 60S. CHANCE OF RAIN 40 PERCENT.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 80. CHANCE OF  
RAIN 40 PERCENT.  
 

 
 
ILZ102-MOZ065-151400-  
MONROE IL-JEFFERSON MO-  
147 AM CDT TUE SEP 15 2026  
 
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT  
THIS EVENING...  
   
REST OF TONIGHT
 
CLEAR. NEAR STEADY TEMPERATURE IN THE LOWER  
70S. SOUTH WINDS AROUND 5 MPH.    
TUESDAY
 
SUNNY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. WARMER WITH HIGHS IN THE UPPER 90S. SOUTHWEST  
WINDS 5 TO 10 MPH. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES  
UP TO 111.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE  
OF THUNDERSTORMS, MAINLY IN THE EVENING. HUMID WITH LOWS IN THE  
LOWER 70S. EAST WINDS AROUND 5 MPH. CHANCE OF RAIN 50 PERCENT.  
HEAT INDEX VALUES UP TO 105 EARLY IN THE EVENING.    
WEDNESDAY
 
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HOT WITH HIGHS IN THE MID 90S.  
SOUTHEAST WINDS AROUND 5 MPH, BECOMING SOUTH AROUND 5 MPH IN THE  
AFTERNOON. CHANCE OF RAIN 40 PERCENT. HEAT INDEX VALUES UP TO  
107.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH  
WINDS AROUND 5 MPH. HEAT INDEX VALUES UP TO 101 EARLY IN THE  
EVENING.    
THURSDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HOT. HIGHS IN THE MID  
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.    
SATURDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.  
LOWS IN THE UPPER 60S.    
SUNDAY AND SUNDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. HIGHS AROUND 90. LOWS IN THE MID 60S.  
CHANCE OF RAIN 20 PERCENT.    
MONDAY
 
MOSTLY 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 80S. CHANCE OF  
RAIN 40 PERCENT.  
 

 
 
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