Zone Forecast Product
Issued by NWS St. Louis, MO

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FPUS53 KLSX 221954
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
254 PM CDT Wed Jul 22 2026

ILZ100-101-MOZ061-063-064-230300-
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
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds 5 to 10 mph.
.THURSDAY...Sunny. Highs in the lower 80s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 60s. East
winds around 5 mph.
.FRIDAY...Mostly cloudy with a 50 percent chance of showers.
Highs in the upper 70s. Southeast winds around 5 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight. Lows in the mid 60s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Partly sunny. A chance of showers and thunderstorms
in the morning. Highs in the upper 80s. Chance of rain
50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index
values up to 100 early in the evening.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index
values up to 110.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the mid 70s. Highs in the upper 90s. Heat index values up to 110.
.TUESDAY...Mostly sunny. Highs in the mid 90s. Heat index values
up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 20 percent chance
of showers. Lows in the lower 70s. Highs in the lower 90s. Heat
index values up to 100.

$$

MOZ042-049-050-230300-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Lows in the lower 60s. Northeast winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. East winds
around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Scattered showers after
midnight. Lows in the lower 60s. East winds around 5 mph. Chance
of rain 40 percent.
.FRIDAY...Showers likely with a slight chance of thunderstorms.
Highs in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain
70 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Southeast winds 5 to 10 mph.
Chance of rain 50 percent.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Warmer with highs in the upper 80s.
Chance of rain 20 percent. Heat index values up to 100 in the
afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the mid 90s. Heat index values up to 105.
.TUESDAY...Mostly sunny. Highs in the lower 90s.
.TUESDAY 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.
.WEDNESDAY...Mostly sunny. Highs around 90.

$$

MOZ041-047-048-230300-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Lows in the mid 60s. Northeast winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. East winds
around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Scattered showers after
midnight. Lows in the mid 60s. East winds around 5 mph. Chance of
rain 50 percent.
.FRIDAY...Showers likely with a slight chance of thunderstorms.
Highs around 80. Southeast winds 5 to 10 mph. Chance of rain
70 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms.
Showers likely, mainly in the evening. Lows in the upper 60s.
Southeast winds 5 to 10 mph. Chance of rain 70 percent.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Warmer with highs in the lower 90s.
Chance of rain 20 percent. Heat index values up to 105 in the
afternoon.
.SATURDAY NIGHT...Clear. Lows in the mid 70s. Heat index values
up to 105 early in the evening.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 110.
.TUESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat
index values up to 105.
.TUESDAY 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.
.WEDNESDAY...Mostly sunny. Highs in the lower 90s.

$$

ILZ095>097-MOZ018-019-026-027-034>036-230300-
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
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
upper 50s. Northeast winds 5 to 10 mph.
.THURSDAY...Sunny. Highs around 80. East winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Scattered showers after
midnight. Lows in the lower 60s. East winds around 5 mph. Chance
of rain 40 percent.
.FRIDAY...Showers likely, mainly in the morning. Highs in the mid
70s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms. Lows in the mid 60s. Southeast
winds 5 to 10 mph. Chance of rain 50 percent.
.SATURDAY...Partly sunny with a slight chance of showers and
thunderstorms in the morning, then sunny in the afternoon. Warmer
with highs in the upper 80s. Chance of rain 20 percent. Heat
index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the
lower 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY...Mostly sunny. Highs in the lower 90s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the lower 70s. Chance of rain 20 percent.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

ILZ069-070-074-230300-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
254 PM CDT Wed Jul 22 2026

.TONIGHT...Mostly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds around 5 mph.
.THURSDAY...Sunny. Highs around 80. Northeast winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 60s. East
winds around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly cloudy with a 40 percent chance of showers.
Highs in the upper 70s. Light and variable winds, becoming east
around 5 mph in the afternoon.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. A slight
chance of thunderstorms in the evening, then a 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 50 percent.
.SATURDAY...Partly sunny. A chance of showers and thunderstorms
in the morning. Highs in the mid 80s. Chance of rain 50 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 70s.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower 90s.
Lows in the mid 70s. Heat index values up to 110.
.MONDAY...Sunny, hot with highs in the mid 90s. Heat index values
up to 110.
.MONDAY NIGHT...Mostly clear. A slight chance of showers after
midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat
index values up to 105 early in the evening.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs in the lower
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.

$$

MOZ074-084-085-099-230300-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds around 5 mph.
.THURSDAY...Sunny. Highs in the lower 80s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the lower 60s. East winds around 5 mph in
the evening, becoming light and variable.
.FRIDAY...Partly sunny with isolated showers in the morning, then
mostly cloudy with a chance of showers with a slight chance of
thunderstorms in the afternoon. Highs in the lower 80s. East
winds around 5 mph. Chance of rain 30 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Southeast winds around 5 mph.
Chance of rain 50 percent.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the upper 90s. Heat index values up to
105.
.TUESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat
index values up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 70s. Highs in the
lower 90s. Chance of rain 20 percent. Heat index values up to
100.

$$

MOZ051-052-060-230300-
Montgomery MO-Lincoln MO-Warren MO-
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Lows around 60. Northeast winds around 5 mph.
.THURSDAY...Sunny. Highs in the lower 80s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy. Scattered showers after
midnight. Lows in the lower 60s. East winds around 5 mph. Chance
of rain 30 percent.
.FRIDAY...Showers likely in the morning, then a chance of showers
with a slight chance of thunderstorms in the afternoon. Highs in
the upper 70s. Southeast winds around 5 mph. Chance of rain
70 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight. Lows in the mid 60s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the morning. Warmer with highs in the upper 80s. Chance of
rain 50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY...Mostly sunny. Highs in the lower 90s. Heat index
values up to 105.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat
index values up to 100 early in the evening.
.WEDNESDAY...Mostly sunny. Highs around 90.

$$

ILZ058-059-098-099-230300-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
upper 50s. Northeast winds 5 to 10 mph.
.THURSDAY...Sunny. Highs around 80. East winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows around 60. East winds
around 5 mph.
.FRIDAY...Mostly cloudy with a 50 percent chance of showers.
Highs in the upper 70s. Southeast winds around 5 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. A slight
chance of thunderstorms in the evening, then a chance of
thunderstorms after midnight. Lows in the lower 60s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Partly sunny. A chance of showers and thunderstorms
in the morning. Warmer with highs in the upper 80s. Chance of
rain 50 percent.
.SATURDAY NIGHT...Mostly clear. Lows around 70.
.SUNDAY...Mostly sunny. Highs in the mid 90s. Heat index values
up to 105.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the mid 90s. Heat index values up to 105.
.TUESDAY...Mostly sunny. Highs in the lower 90s. Heat index
values up to 100.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 20 percent chance
of showers. Lows around 70. Highs in the upper 80s.

$$

ILZ060-064-065-230300-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
254 PM CDT Wed Jul 22 2026

.TONIGHT...Mostly cloudy this evening, then clearing. Lows in the
upper 50s. Northeast winds 5 to 10 mph.
.THURSDAY...Sunny. Highs in the upper 70s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows around 60. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Partly sunny in the morning, then becoming mostly
cloudy. A 40 percent chance of showers. Highs in the upper 70s.
Southeast winds around 5 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers. A slight
chance of thunderstorms after midnight. Lows in the lower 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.
Highs in the mid 80s. Chance of rain 50 percent.
.SATURDAY NIGHT...Mostly clear. Lows around 70.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower 90s.
Lows in the lower 70s. Heat index values up to 105.
.MONDAY...Sunny. Highs in the mid 90s. Heat index values up to
105.
.MONDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly clear with a slight chance of showers. Lows in the lower
70s. Chance of rain 20 percent. Heat index values up to 105 early
in the evening.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs in the lower
90s. Lows around 70. Heat index values up to 100.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the upper 80s. Chance of rain 20 percent.

$$

ILZ079-MOZ075-230300-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds 5 to 10 mph.
.THURSDAY...Sunny. Highs around 80. Northeast winds around 5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 60s. East
winds around 5 mph.
.FRIDAY...Mostly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Highs around 80. East winds
around 5 mph. Chance of rain 40 percent.
.FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening, then showers likely with
a chance of thunderstorms 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. Highs in the upper 80s. Chance of rain
50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the mid 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat
index values up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A 20 percent chance
of showers. Lows in the lower 70s. Highs in the lower 90s. Heat
index values up to 100.

$$

MOZ059-062-072-073-230300-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
254 PM CDT Wed Jul 22 2026

.TONIGHT...Partly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds around 5 mph.
.THURSDAY...Sunny. Highs in the lower 80s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 60s. East
winds around 5 mph.
.FRIDAY...Mostly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Highs around 80. Southeast
winds around 5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the mid 60s. Southeast winds around 5 mph.
Chance of rain 60 percent.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the upper 80s. Chance of rain
50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the upper 90s. Heat index values up to
110.
.TUESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat
index values up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 70s. Highs in the
lower 90s. Chance of rain 20 percent. Heat index values up to
100.

$$

ILZ102-MOZ065-230300-
Monroe IL-Jefferson MO-
254 PM CDT Wed Jul 22 2026

.TONIGHT...Mostly cloudy this evening, then clearing. Lows in the
lower 60s. Northeast winds around 5 mph.
.THURSDAY...Sunny. Highs in the lower 80s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 60s. East
winds around 5 mph.
.FRIDAY...Mostly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Highs around 80. East winds
around 5 mph. Chance of rain 40 percent.
.FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening, then showers likely with
a chance of thunderstorms 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. Highs in the upper 80s. Chance of rain
50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in
the lower 70s. Highs in the upper 90s. Heat index values up to
110.
.TUESDAY...Mostly sunny. Hot with highs in the mid 90s. Heat
index values up to 105.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat
index values up to 100 early in the evening.
.WEDNESDAY...Mostly sunny. Highs in the lower 90s.

$$