878
FPUS53 KLSX 231603
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
1103 AM CDT Thu Jul 23 2026

ILZ100-101-MOZ061-063-064-240000-
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
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Mostly sunny. Highs in the lower 80s. East
winds around 5 mph.
.TONIGHT...Mostly cloudy. Lows in the mid 60s. East winds around
5 mph.
.FRIDAY...Mostly cloudy with scattered showers. Highs in the
upper 70s. Southeast winds around 5 mph. Chance of rain
50 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers. Lows in the
mid 60s. Southeast winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly cloudy with a chance of showers and
thunderstorms in the morning, then partly sunny in the afternoon.
Warmer with highs in the upper 80s. South winds around 5 mph.
Chance of rain 50 percent. Heat index values up to 101 in the
afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat
index values up to 100 early in the evening.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the lower 90s.
Lows in the mid 70s. Heat index values up to 110.
.MONDAY...Mostly sunny. Hot with highs in the upper 90s. Heat
index values up to 110.
.MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 110 early in the evening.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Hot. Highs in the mid
90s. Lows in the lower 70s. Heat index values up to 105.
.WEDNESDAY...Mostly sunny. Highs around 90.

$$

MOZ042-049-050-240000-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Mostly cloudy. A chance of sprinkles early.
Highs in the lower 80s. East winds around 5 mph.
.TONIGHT...Mostly cloudy. Scattered showers after midnight. Lows
in the mid 60s. East winds around 5 mph. Chance of rain
40 percent.
.FRIDAY...Isolated thunderstorms. Scattered showers in the
morning, then numerous showers in the afternoon. Highs in the mid
70s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.
.FRIDAY NIGHT...Numerous showers with isolated thunderstorms.
Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of
rain 70 percent.
.SATURDAY...Mostly sunny. Scattered showers with a slight chance
of thunderstorms in the morning. Warmer with highs in the upper
80s. South winds around 5 mph, becoming west in the afternoon.
Chance of rain 50 percent. Heat index values up to 103 in the
afternoon.
.SATURDAY 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. Lows in the lower
70s. Highs around 90. Heat index values up to 100.

$$

MOZ041-047-048-240000-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Cloudy with a chance of sprinkles. Highs in the
lower 80s. East winds around 5 mph.
.TONIGHT...Mostly cloudy. Scattered showers after midnight. Lows
in the upper 60s. East winds around 5 mph. Chance of rain
40 percent.
.FRIDAY...Numerous showers with isolated thunderstorms. Highs in
the upper 70s. Southeast winds around 5 mph. Chance of rain
70 percent.
.FRIDAY NIGHT...Numerous showers with isolated thunderstorms.
Near steady temperature in the lower 70s. Southeast winds 5 to
10 mph. Chance of rain 60 percent.
.SATURDAY...Mostly sunny. Scattered showers with a slight chance
of thunderstorms in the morning. Much warmer. Humid with highs in
the lower 90s. South winds around 5 mph, becoming west around
5 mph in the afternoon. Chance of rain 50 percent. Heat index
values up to 106 in the afternoon.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
mid 70s. Highs in the upper 90s. Heat index values up to 110.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the mid
70s. Highs in the lower 90s. Heat index values up to 100.

$$

ILZ095>097-MOZ018-019-026-027-034>036-240000-
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
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Mostly sunny. Highs around 80. East winds
around 5 mph.
.TONIGHT...Mostly cloudy. Isolated showers after midnight. Lows
in the lower 60s. East winds around 5 mph. Chance of rain
20 percent.
.FRIDAY...Cloudy. Scattered showers in the morning, then numerous
showers in the afternoon. Highs in the mid 70s. Southeast winds
5 to 10 mph. Chance of rain 70 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers. Lows in the
mid 60s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
.SATURDAY...Partly sunny. Scattered showers in the morning.
Warmer with highs in the upper 80s. Southwest winds around 5 mph.
Chance of rain 50 percent.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the lower
70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the lower
70s. Highs in the upper 80s.

$$

ILZ069-070-074-240000-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Sunny. Highs in the upper 70s. Northeast winds
around 5 mph.
.TONIGHT...Partly cloudy in the evening, then becoming mostly
cloudy. Lows in the lower 60s. Northeast winds around 5 mph in
the evening, becoming light and variable.
.FRIDAY...Mostly cloudy. Scattered showers in the afternoon.
Highs in the upper 70s. Light and variable winds. Chance of rain
40 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers. Lows in the
mid 60s. Light and variable winds, becoming southeast around
5 mph after midnight. Chance of rain 50 percent.
.SATURDAY...Showers likely with a chance of thunderstorms in the
morning, then partly sunny in the afternoon. Highs in the mid
80s. South winds around 5 mph. Chance of rain 60 percent.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the lower
70s. Highs in the lower 90s. Heat index values up to 105.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.MONDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index
values up to 115 in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 110 early in the evening.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. 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. Highs in the upper 80s. Chance of rain 20 percent.

$$

MOZ074-084-085-099-240000-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Partly sunny. Highs in the lower 80s. East
winds around 5 mph.
.TONIGHT...Mostly cloudy. Lows in the lower 60s. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly cloudy. Isolated showers in the morning, then
scattered showers with isolated thunderstorms in the afternoon.
Highs in the lower 80s. Southeast winds around 5 mph. Chance of
rain 50 percent.
.FRIDAY NIGHT...Mostly cloudy with isolated thunderstorms.
Scattered showers in the evening, then numerous showers after
midnight. Lows in the upper 60s. Southeast winds around 5 mph.
Chance of rain 70 percent.
.SATURDAY...Partly sunny with a chance of thunderstorms. Numerous
showers, mainly in the morning. Humid with highs in the upper
80s. Southwest winds around 5 mph. Chance of rain 70 percent.
Heat index values up to 103 in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat
index values up to 100 early in the evening.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Hot. Highs in the mid
90s. Lows in the lower 70s. Heat index values up to 105.
.MONDAY...Mostly sunny. Hot with highs in the upper 90s. Heat
index values up to 105.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Hot. Lows in the mid
70s. Highs in the upper 90s. Heat index values up to 105.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index
values up to 105 early in the evening.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 90s. Chance of
rain 20 percent.

$$

MOZ051-052-060-240000-
Montgomery MO-Lincoln MO-Warren MO-
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Partly sunny. Highs in the lower 80s. Light and
variable winds, becoming east around 5 mph.
.TONIGHT...Mostly cloudy. Isolated showers after midnight. Lows
in the lower 60s. East winds around 5 mph. Chance of rain
20 percent.
.FRIDAY...Cloudy. Scattered showers in the morning, then numerous
showers in the afternoon. Highs in the mid 70s. Southeast winds
around 5 mph. Chance of rain 70 percent.
.FRIDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms in the evening, then scattered showers after
midnight. Lows in the mid 60s. Southeast winds around 5 mph.
Chance of rain 60 percent.
.SATURDAY...Partly sunny. A chance of showers and thunderstorms
in the morning. Warmer with highs in the upper 80s. South winds
around 5 mph, becoming west in the afternoon. Chance of rain
50 percent. Heat index values up to 103 in the afternoon.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
lower 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the lower
70s. Highs in the lower 90s. Heat index values up to 105.

$$

ILZ058-059-098-099-240000-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Sunny. Highs in the upper 70s. East winds
around 5 mph.
.TONIGHT...Mostly cloudy. Lows in the lower 60s. East winds
around 5 mph.
.FRIDAY...Mostly cloudy with scattered showers. Highs in the mid
70s. Southeast winds around 5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers. Lows in the
mid 60s. Southeast winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly cloudy with a chance of showers and
thunderstorms in the morning, then partly sunny in the afternoon.
Warmer with highs in the mid 80s. South winds around 5 mph.
Chance of rain 50 percent.
.SATURDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows in the upper 60s.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs in the mid 90s.
Lows in the mid 70s. Heat index values up to 110.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 70.
Highs in the upper 80s. Heat index values up to 100.

$$

ILZ060-064-065-240000-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Sunny. Highs in the upper 70s. Northeast winds
around 5 mph.
.TONIGHT...Partly cloudy in the evening, then becoming mostly
cloudy. Lows around 60. East winds around 5 mph in the evening,
becoming light and variable.
.FRIDAY...Mostly cloudy. Isolated showers in the afternoon. Highs
in the upper 70s. Southeast winds around 5 mph. Chance of rain
20 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers. Lows in the
mid 60s. Southeast winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Showers likely with a chance of thunderstorms in the
morning, then partly sunny in the afternoon. Highs in the mid
80s. South winds around 5 mph. Chance of rain 60 percent.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the upper
60s. Highs in the lower 90s. Heat index values up to 105.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the lower
70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT...Partly cloudy. Lows around 70. Heat index values
up to 100 early in the evening.
.WEDNESDAY...Sunny. Highs in the upper 80s.

$$

ILZ079-MOZ075-240000-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Mostly sunny. Highs around 80. Northeast winds
around 5 mph.
.TONIGHT...Mostly cloudy. Lows in the lower 60s. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly cloudy. Isolated showers in the morning, then
scattered showers in the afternoon. Highs around 80. East winds
around 5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows in the mid 60s. Southeast winds
around 5 mph. Chance of rain 50 percent.
.SATURDAY...Showers likely with a chance of thunderstorms in the
morning, then partly sunny with a slight chance of showers and
thunderstorms in the afternoon. Humid with highs in the upper
80s. South winds around 5 mph. Chance of rain 60 percent. Heat
index values up to 102 in the afternoon.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the lower
70s. Highs in the lower 90s. Heat index values up to 110.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.MONDAY...Mostly sunny. Hot with highs in the upper 90s. Heat
index values up to 110.
.MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 110 early in the evening.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Hot. Highs in the mid
90s. Lows in the lower 70s. Heat index values up to 110.
.WEDNESDAY...Mostly sunny. Highs in the lower 90s.

$$

MOZ059-062-072-073-240000-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Mostly cloudy. Highs in the lower 80s. East
winds around 5 mph.
.TONIGHT...Mostly cloudy. Isolated showers after midnight. Lows
in the lower 60s. East winds around 5 mph. Chance of rain
20 percent.
.FRIDAY...Cloudy with scattered showers. Isolated thunderstorms
in the afternoon. Highs in the upper 70s. Southeast winds around
5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Numerous showers with isolated thunderstorms.
Lows in the upper 60s. Southeast winds around 5 mph. Chance of
rain 70 percent.
.SATURDAY...Partly sunny. Numerous showers with a chance of
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon. Warmer with highs around 90.
South winds around 5 mph, becoming west in the afternoon. Chance
of rain 70 percent. Heat index values up to 104 in the afternoon.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
lower 70s. Highs in the upper 90s. Heat index values up to 110.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index
values up to 105 early in the evening.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 90s. Chance of
rain 20 percent.

$$

ILZ102-MOZ065-240000-
Monroe IL-Jefferson MO-
1103 AM CDT Thu Jul 23 2026

.THIS AFTERNOON...Partly sunny. Highs in the lower 80s. East
winds around 5 mph.
.TONIGHT...Mostly cloudy. Lows in the lower 60s. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly cloudy with scattered showers. Highs in the
upper 70s. Southeast winds around 5 mph. Chance of rain
50 percent.
.FRIDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows in the mid 60s. Southeast winds
around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly cloudy with a chance of showers and
thunderstorms in the morning, then partly sunny with a slight
chance of showers and thunderstorms in the afternoon. Warmer with
highs in the upper 80s. South winds around 5 mph, becoming
southwest around 5 mph in the afternoon. Chance of rain
50 percent. Heat index values up to 103 in the afternoon.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the lower
70s. Highs in the mid 90s. Heat index values up to 110.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 110 early in the evening.
.MONDAY...Mostly sunny. Hot with highs in the upper 90s. Heat
index values up to 110.
.MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 110 early in the evening.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs in the mid 90s.
Lows in the lower 70s. Heat index values up to 110.

$$