421
FPUS53 KLSX 290627
ZFPLSX
ZONE FORECASTS
NATIONAL WEATHER SERVICE SAINT LOUIS MO
127 AM CDT SAT AUG 29 2026
ILZ100-101-MOZ061-063-064-291400-
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
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
MID 60S. LIGHT AND VARIABLE WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
5 TO 10 MPH.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE UPPER
90S. LOWS IN THE UPPER 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. 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 IN THE
MORNING. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105.
MOZ042-049-050-291400-
AUDRAIN MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF MEXICO AND FULTON
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS 5 TO
10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE MID
90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. 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 IN THE
MORNING. HIGHS IN THE MID 90S. CHANCE OF RAIN 20 PERCENT.
MOZ041-047-048-291400-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS
5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE UPPER 90S. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
5 TO 10 MPH. HEAT INDEX VALUES UP TO 100 EARLY IN THE EVENING.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE UPPER
90S. LOWS IN THE UPPER 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. 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 IN THE
MORNING. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105.
ILZ095>097-MOZ018-019-026-027-034>036-291400-
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
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS UP TO 25 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
5 TO 10 MPH WITH GUSTS UP TO 20 MPH.
MONDAY THROUGH WEDNESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
UPPER 90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 100.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 70S. CHANCE OF RAIN
20 PERCENT.
FRIDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 90S. CHANCE OF RAIN 20 PERCENT. HEAT
INDEX VALUES UP TO 100.
ILZ069-070-074-291400-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
CLEAR. NEAR STEADY TEMPERATURE IN THE MID 60S.
LIGHT AND VARIABLE WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE UPPER
90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. 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 IN THE
MORNING. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105.
MOZ074-084-085-099-291400-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
CLEAR. PATCHY FOG. NEAR STEADY TEMPERATURE IN
THE LOWER 60S. LIGHT AND VARIABLE WINDS.
SATURDAY
SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY THROUGH TUESDAY
CLEAR, HOT. HIGHS IN THE MID 90S. LOWS
IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.
TUESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. HOT. LOWS
IN THE LOWER 70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO
105.
FRIDAY
SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 90S. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP
TO 105.
MOZ051-052-060-291400-
MONTGOMERY MO-LINCOLN MO-WARREN MO-
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTH WINDS 5 TO
10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY THROUGH WEDNESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
UPPER 90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S. HEAT
INDEX VALUES UP TO 105.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. 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 IN THE
MORNING. HIGHS IN THE MID 90S. CHANCE OF RAIN 20 PERCENT. HEAT
INDEX VALUES UP TO 100.
ILZ058-059-098-099-291400-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 5 TO
10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY THROUGH WEDNESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
UPPER 90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. HOT. HIGHS IN THE MID 90S. LOWS IN THE
MID 70S. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO 105.
ILZ060-064-065-291400-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
5 TO 10 MPH.
MONDAY THROUGH WEDNESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
UPPER 90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY
SUNNY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HOT WITH HIGHS IN THE UPPER 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. HOT. LOWS IN THE LOWER 70S. HIGHS IN
THE MID 90S. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP TO
100.
ILZ079-MOZ075-291400-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
CLEAR. PATCHY FOG. NEAR STEADY TEMPERATURE IN
THE MID 60S. LIGHT AND VARIABLE WINDS.
SATURDAY
SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE MID
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 100.
TUESDAY
SUNNY, HOT WITH HIGHS IN THE MID 90S. HEAT INDEX
VALUES UP TO 105.
TUESDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. HOT. LOWS IN THE
MID 70S. HIGHS IN THE UPPER 90S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 70S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 100 EARLY IN THE EVENING.
FRIDAY
SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE MORNING. HOT
WITH HIGHS IN THE MID 90S. CHANCE OF RAIN 20 PERCENT. HEAT INDEX
VALUES UP TO 105.
MOZ059-062-072-073-291400-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. NEAR STEADY
TEMPERATURE IN THE LOWER 60S. LIGHT AND VARIABLE WINDS.
SATURDAY
SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE UPPER
90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 70S. CHANCE OF RAIN 20 PERCENT. HEAT
INDEX VALUES UP TO 100 EARLY IN THE EVENING.
FRIDAY
SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 90S. CHANCE OF RAIN 20 PERCENT. HEAT INDEX VALUES UP
TO 105.
ILZ102-MOZ065-291400-
MONROE IL-JEFFERSON MO-
127 AM CDT SAT AUG 29 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. NEAR STEADY
TEMPERATURE IN THE LOWER 60S. LIGHT AND VARIABLE WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HOT. HIGHS IN THE UPPER
90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 110.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. 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 IN THE
MORNING. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105.
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