742
FPUS53 KLSX 241043
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
542 AM CDT Mon Aug 24 2026

ILZ100-101-MOZ061-063-064-241800-
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
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Sunny. Highs in the
lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the lower 60s. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 60s. Southeast winds around
5 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the
upper 80s. Southwest winds around 5 mph. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Mostly clear. A chance of showers with a
slight chance of thunderstorms in the evening. Lows in the upper
60s. Chance of rain 30 percent.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs in the upper
80s. Lows in the mid 60s.
.SATURDAY...Partly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 70s. Chance of
rain 20 percent.
.SUNDAY...Partly sunny. Highs in the lower 90s.

$$

MOZ042-049-050-241800-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Mostly sunny. Highs
in the lower 80s. East winds 5 to 10 mph.
.TONIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the upper 60s. Southeast
winds around 5 mph. Chance of rain 20 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. West winds
around 5 mph. Chance of rain 20 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Partly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers. Lows in
the lower 70s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the upper 80s.

$$

MOZ041-047-048-241800-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
543 AM CDT Mon Aug 24 2026

.TODAY...Partly sunny. A slight chance of showers this morning.
Widespread dense fog this morning. Highs in the lower 80s. East
winds 5 to 10 mph. Chance of rain 20 percent.
.TONIGHT...Mostly clear. Lows in the mid 60s. East winds 5 to
10 mph.
.TUESDAY...Mostly sunny. Highs in the upper 80s. East winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly cloudy in the evening, then partly cloudy
with a slight chance of showers and thunderstorms after midnight.
Lows in the upper 60s. Southeast winds around 5 mph. Chance of
rain 20 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the upper 80s. West winds
around 5 mph. Chance of rain 20 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the upper 80s.
.SATURDAY...Partly sunny. Highs around 90.
.SATURDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers. Lows in
the lower 70s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the mid 90s. Heat index values
up to 100 in the afternoon.

$$

ILZ095>097-MOZ018-019-026-027-034>036-241800-
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
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Mostly sunny. Highs
in the lower 80s. Southeast winds around 5 mph.
.TONIGHT...Mostly clear. Lows in the lower 60s. East winds around
5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with a chance of showers with a slight chance of thunderstorms
after midnight. Lows in the upper 60s. South winds around 5 mph.
Chance of rain 30 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the upper 80s. West winds 5 to 10 mph. Chance
of rain 20 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows in the lower
60s. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s.
.SATURDAY...Partly sunny in the morning, then becoming mostly
cloudy. A slight chance of showers and thunderstorms. Highs in
the upper 80s. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly 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 lower 70s. Chance
of rain 40 percent.
.SUNDAY...Partly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the upper 80s. Chance of
rain 20 percent.

$$

ILZ069-070-074-241800-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
543 AM CDT Mon Aug 24 2026

.TODAY...Sunny. Highs in the lower 80s. Light and variable winds,
becoming northeast around 5 mph this afternoon.
.TONIGHT...Mostly clear. Lows in the lower 60s. East winds around
5 mph.
.TUESDAY...Sunny. Highs in the mid 80s. East winds around 5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. East winds
around 5 mph in the evening, becoming light and variable.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
afternoon. Highs in the upper 80s. Southwest winds around 5 mph.
Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly clear
after midnight. Lows in the upper 60s. Chance of rain 30 percent.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs in the upper
80s. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Mostly cloudy in the evening, then partly
cloudy with a slight chance of showers after midnight. Lows in
the upper 60s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the lower 90s.

$$

MOZ074-084-085-099-241800-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
543 AM CDT Mon Aug 24 2026

.TODAY...Areas of dense fog this morning. Mostly sunny. Highs in
the lower 80s. Southeast winds around 5 mph.
.TONIGHT...Partly cloudy. Lows in the mid 60s. East winds around
5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
around 5 mph.
.TUESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with a slight chance of showers and thunderstorms after midnight.
Lows in the mid 60s. East winds around 5 mph in the evening,
becoming light and variable. Chance of rain 20 percent.
.WEDNESDAY...Mostly sunny with a chance of showers with a slight
chance of thunderstorms. Highs in the mid 80s. Light and variable
winds, becoming southwest around 5 mph in the afternoon. Chance
of rain 50 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 60s. Chance of rain
20 percent.
.SUNDAY...Mostly sunny. Highs around 90.

$$

MOZ051-052-060-241800-
Montgomery MO-Lincoln MO-Warren MO-
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Mostly sunny. Highs
in the lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the lower 60s. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Southeast
winds around 5 mph in the evening, becoming light and variable.
Chance of rain 20 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the upper 80s. Southwest winds around 5 mph.
Chance of rain 20 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Partly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers. Lows
around 70. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs around 90.

$$

ILZ058-059-098-099-241800-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Sunny. Highs in the
lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear. Lows around 60. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
around 5 mph.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 60s. Southeast winds around 5 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the
upper 80s. Southwest winds 5 to 10 mph. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Mostly clear. A chance of showers with a
slight chance of thunderstorms in the evening. Lows in the mid
60s. Chance of rain 30 percent.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs in the mid 80s.
Lows in the lower 60s.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s.
.SATURDAY...Partly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows around 70. Chance of rain
20 percent.
.SUNDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the lower 90s. Chance of rain 20 percent.

$$

ILZ060-064-065-241800-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
543 AM CDT Mon Aug 24 2026

.TODAY...Sunny. Highs in the lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 50s. East winds around
5 mph.
.TUESDAY...Sunny. Highs in the lower 80s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph in the evening, becoming light and variable.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 80s. Southwest
winds around 5 mph. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Mostly clear. A chance of showers with a
slight chance of thunderstorms in the evening. Lows in the mid
60s. Chance of rain 30 percent.
.THURSDAY...Sunny. Highs in the mid 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the mid 80s.
Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 60s. Chance of rain
20 percent.
.SUNDAY...Mostly sunny. Highs around 90.

$$

ILZ079-MOZ075-241800-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Sunny. Highs in the
lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the lower 60s. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. East winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. East winds
around 5 mph in the evening, becoming light and variable.
.WEDNESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Southwest winds around
5 mph. Chance of rain 20 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Mostly cloudy in the evening, then partly
cloudy with a slight chance of showers after midnight. Lows in
the upper 60s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the lower 90s. Heat index values
up to 100 in the afternoon.

$$

MOZ059-062-072-073-241800-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
543 AM CDT Mon Aug 24 2026

.TODAY...Areas of dense fog this morning. Mostly sunny. Highs in
the lower 80s. Southeast winds around 5 mph.
.TONIGHT...Partly cloudy. Lows in the lower 60s. East winds
around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. Southeast winds
5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight
chance of thunderstorms after midnight. Lows in the mid 60s. East
winds around 5 mph in the evening, becoming light and variable.
Chance of rain 40 percent.
.WEDNESDAY...Mostly sunny with a chance of showers with a slight
chance of thunderstorms. Highs in the upper 80s. Southwest winds
around 5 mph. Chance of rain 40 percent.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 80s. Chance of
rain 20 percent.
.SATURDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers. Lows in
the upper 60s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the lower 90s.

$$

ILZ102-MOZ065-241800-
Monroe IL-Jefferson MO-
543 AM CDT Mon Aug 24 2026

.TODAY...Widespread dense fog this morning. Mostly sunny. Highs
in the lower 80s. East winds around 5 mph.
.TONIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the lower 60s. East winds around 5 mph.
.TUESDAY...Mostly sunny. Highs in the mid 80s. East winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the mid 60s. East winds around 5 mph in
the evening, becoming light and variable.
.WEDNESDAY...Mostly sunny with a slight chance of thunderstorms.
A slight chance of showers in the morning, then a chance of
showers in the afternoon. Highs in the upper 80s. Southwest winds
around 5 mph. Chance of rain 40 percent.
.WEDNESDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. Chance of rain
20 percent.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs in the upper
80s. Lows in the mid 60s.
.SATURDAY...Partly sunny. Highs in the upper 80s.
.SATURDAY NIGHT...Mostly cloudy in the evening, then partly
cloudy with a slight chance of showers after midnight. Lows in
the upper 60s. Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Highs in the lower 90s. Heat index values
up to 100 in the afternoon.

$$