639
FPUS53 KLSX 261958
ZFPLSX
ZONE FORECASTS
NATIONAL WEATHER SERVICE SAINT LOUIS MO
258 PM CDT WED AUG 26 2026
ILZ100-101-MOZ061-063-064-270300-
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
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE UPPER 80S. NORTH WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS 5 TO 10 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE UPPER
80S. LOWS IN THE UPPER 60S.
SUNDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
MID 90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 105.
WEDNESDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE UPPER 90S. HEAT
INDEX VALUES UP TO 105.
MOZ042-049-050-270300-
AUDRAIN MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF MEXICO AND FULTON
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
HIGHS IN THE LOWER 90S.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
70S. HIGHS IN THE LOWER 90S. HEAT INDEX VALUES UP TO 100.
MOZ041-047-048-270300-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTH WINDS AROUND
5 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT AND VARIABLE WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S.
MONDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HOT. HIGHS IN THE MID
90S. LOWS IN THE MID 70S. HEAT INDEX VALUES UP TO 100.
ILZ095>097-MOZ018-019-026-027-034>036-270300-
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
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT AND VARIABLE WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE UPPER
80S. LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE MID 90S. CHANCE OF RAIN 20 PERCENT.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. HOT. LOWS IN THE MID
70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 100.
MONDAY NIGHT
MOSTLY CLEAR. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 70S. CHANCE OF RAIN
20 PERCENT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLEAR
WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
LOWS IN THE LOWER 70S. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 90S. CHANCE OF RAIN 20 PERCENT.
ILZ069-070-074-270300-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
258 PM CDT WED AUG 26 2026
TONIGHT
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS
THIS EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. PATCHY FOG AFTER
MIDNIGHT. LOWS IN THE MID 60S. NORTHWEST WINDS AROUND 5 MPH THIS
EVENING, BECOMING LIGHT AND VARIABLE. CHANCE OF RAIN 20 PERCENT.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID
80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE MID 60S.
SUNDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HOT. HIGHS IN THE
MID 90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 105.
WEDNESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING. HOT WITH HIGHS IN THE UPPER 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 105 IN THE AFTERNOON.
MOZ074-084-085-099-270300-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
258 PM CDT WED AUG 26 2026
TONIGHT
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS
THIS EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. PATCHY FOG AFTER
MIDNIGHT. LOWS IN THE MID 60S. LIGHT AND VARIABLE WINDS. CHANCE
OF RAIN 20 PERCENT.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID
80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID 80S.
NORTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
SATURDAY THROUGH MONDAY
MOSTLY CLEAR. HIGHS AROUND 90. LOWS IN
THE MID 60S.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER
70S. HIGHS IN THE LOWER 90S. HEAT INDEX VALUES UP TO 105.
MOZ051-052-060-270300-
MONTGOMERY MO-LINCOLN MO-WARREN MO-
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH THIS EVENING, BECOMING LIGHT AND VARIABLE.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT AND VARIABLE WINDS,
BECOMING NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 100.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 100.
ILZ058-059-098-099-270300-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS 5 TO 10 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. EAST WINDS AROUND
5 MPH.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE UPPER
80S. LOWS IN THE MID 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S.
SUNDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S.
MONDAY NIGHT THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HOT. LOWS IN
THE LOWER 70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 100.
WEDNESDAY
MOSTLY SUNNY. HOT WITH HIGHS IN THE MID 90S.
ILZ060-064-065-270300-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS THIS
EVENING. LOWS IN THE MID 60S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE
OF RAIN 20 PERCENT.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
80S. LOWS IN THE MID 60S.
SUNDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
90S. LOWS IN THE LOWER 70S. HEAT INDEX VALUES UP TO 100.
WEDNESDAY
SUNNY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HOT WITH HIGHS IN THE MID 90S. CHANCE OF RAIN
20 PERCENT. HEAT INDEX VALUES UP TO 100.
ILZ079-MOZ075-270300-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
258 PM CDT WED AUG 26 2026
TONIGHT
PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS
THIS EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. PATCHY FOG AFTER
MIDNIGHT. LOWS IN THE MID 60S. NORTHWEST WINDS AROUND 5 MPH.
CHANCE OF RAIN 20 PERCENT.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID
80S. NORTH WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS AROUND 90. LOWS IN
THE LOWER 60S.
SUNDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. HOT. LOWS IN THE
LOWER 70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 105.
MOZ059-062-072-073-270300-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
258 PM CDT WED AUG 26 2026
TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
MID 60S. NORTHWEST WINDS AROUND 5 MPH THIS EVENING, BECOMING
LIGHT AND VARIABLE.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID
80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 50S. NORTH WINDS AROUND 5 MPH IN THE EVENING,
BECOMING LIGHT AND VARIABLE.
FRIDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE MID 80S.
LIGHT AND VARIABLE WINDS, BECOMING NORTHEAST AROUND 5 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
SATURDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 90S.
LOWS IN THE UPPER 60S. HEAT INDEX VALUES UP TO 100.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 100.
ILZ102-MOZ065-270300-
MONROE IL-JEFFERSON MO-
258 PM CDT WED AUG 26 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN BECOMING MOSTLY
CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE MID 60S. NORTHWEST
WINDS AROUND 5 MPH THIS EVENING, BECOMING LIGHT AND VARIABLE.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS IN THE UPPER
80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
FRIDAY
SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 90S.
LOWS IN THE MID 60S.
SUNDAY NIGHT THROUGH TUESDAY
MOSTLY CLEAR. HOT. LOWS IN THE
LOWER 70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 105.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. HOT. LOWS IN THE
LOWER 70S. HIGHS IN THE MID 90S. HEAT INDEX VALUES UP TO 105.
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