Zone Forecast Product
Issued by NWS St. Louis, MO

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FPUS53 KLSX 070728
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
228 AM CDT Fri Aug 7 2026

ILZ100-101-MOZ061-063-064-071500-
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
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s. South
winds around 5 mph. Chance of rain 50 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Warmer with highs in the upper 80s.
Southwest winds around 5 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 70s. Southwest
winds around 5 mph.
.SATURDAY...Sunny with highs in the upper 80s. West winds around
5 mph. Heat index values up to 101 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
East winds around 5 mph, becoming south after midnight. Heat
index values up to 101 early in the evening.
.SUNDAY...Mostly sunny. Highs in the lower 90s. Heat index values
up to 105.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the
mid 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 AND WEDNESDAY...Partly cloudy. A chance of showers
and thunderstorms. Lows in the mid 70s. Highs in the upper 80s.
Chance of rain 50 percent. Heat index values up to 105.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers and thunderstorms. Lows in the lower 70s. Highs in the
lower 80s. Chance of rain 50 percent.

$$

MOZ042-049-050-071500-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy. Near steady temperature in the
upper 60s. South winds around 5 mph.
.FRIDAY...Partly sunny. Highs in the mid 80s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
in the upper 60s. Southwest winds around 5 mph.
.SATURDAY...Sunny with highs in the upper 80s. West winds around
5 mph, becoming northeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 70s. Southeast
winds around 5 mph. Chance of rain 20 percent.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs in the lower
90s. Lows in the mid 70s. 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 chance of showers
and thunderstorms. Lows in the lower 70s. Highs in the upper 80s.
Chance of rain 50 percent. Heat index values up to 100.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers and thunderstorms. Lows in the upper 60s. Highs in the
lower 80s. Chance of rain 50 percent.

$$

MOZ041-047-048-071500-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Partly cloudy. Near steady temperature in the
upper 60s. South winds around 5 mph.
.FRIDAY...Partly sunny. Warmer with highs in the upper 80s.
Southwest winds around 5 mph.
.FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
around 70. Southwest winds around 5 mph.
.SATURDAY...Sunny with highs around 90. West winds around 5 mph,
becoming east in the afternoon. Heat index values up to 100 in
the afternoon.
.SATURDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms after midnight. Humid with lows in the lower 70s.
Southeast winds around 5 mph. Chance of rain 20 percent.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs in the mid
90s. Lows in the mid 70s. Heat index values up to 105.
.TUESDAY...Mostly sunny. Highs in the lower 90s. Heat index
values up to 105 in the afternoon.
.TUESDAY NIGHT...Partly 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 mid 70s. Chance of
rain 50 percent. Heat index values up to 100 early in the
evening.
.WEDNESDAY...Mostly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs around 90. Chance of rain
50 percent.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers and thunderstorms. Lows around 70. Highs in the lower
80s. Chance of rain 50 percent.

$$

ILZ095>097-MOZ018-019-026-027-034>036-071500-
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
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Partly cloudy. Near steady temperature in the
upper 60s. South winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 80s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the upper 60s. Southwest winds around
5 mph. Chance of rain 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 80s. Northwest winds
around 5 mph, becoming northeast in the afternoon.
.SATURDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a chance of showers and thunderstorms after midnight. Lows
around 70. Southeast winds around 5 mph. Chance of rain
40 percent.
.SUNDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 90s. Chance of
rain 20 percent. Heat index values up to 105 in the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.MONDAY...Sunny. Highs in the lower 90s. Heat index values up to
105.
.MONDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers and thunderstorms after midnight.
Lows in the mid 70s. Chance of rain 20 percent. Heat index values
up to 105 early in the evening.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
Heat index values up to 100.
.TUESDAY NIGHT...Partly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the lower 70s. Chance of rain 60 percent.
.WEDNESDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the mid 80s. Chance of rain
50 percent.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly cloudy
with a chance of showers and thunderstorms after midnight. Lows
in the upper 60s. Chance of rain 50 percent.
.THURSDAY...Partly sunny. A chance of showers with a slight
chance of thunderstorms in the morning, then a chance of showers
and thunderstorms in the afternoon. Highs around 80. Chance of
rain 50 percent.

$$

ILZ069-070-074-071500-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s.
Southeast winds around 5 mph. Chance of rain 40 percent.
.FRIDAY...Mostly cloudy with a chance of showers and
thunderstorms in the morning, then mostly sunny in the afternoon.
Humid with highs in the upper 80s. South winds around 5 mph,
becoming southwest around 5 mph in the afternoon. Chance of rain
40 percent.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the lower 70s. Southwest
winds around 5 mph. Chance of rain 20 percent.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Humid with highs in the upper
80s. Southwest winds around 5 mph. Chance of rain 20 percent.
Heat index values up to 102 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows around 70. Light
and variable winds. Heat index values up to 100 early in the
evening.
.SUNDAY...Sunny. A slight chance of showers in the morning. Highs
in the lower 90s. Chance of rain 20 percent. Heat index values up
to 105 in the afternoon.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the mid
70s. Highs in the lower 90s. Heat index values up to 110.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers
and thunderstorms. Lows in the lower 70s. Highs in the upper 80s.
Chance of rain 50 percent. Heat index values up to 105.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers and thunderstorms. Lows around 70. Highs in the lower
80s. Chance of rain 50 percent.

$$

MOZ074-084-085-099-071500-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy. Near steady temperature in the
upper 60s. South winds around 5 mph.
.FRIDAY...Partly sunny. Showers and thunderstorms likely in the
afternoon. Highs in the upper 80s. Southwest winds around 5 mph.
Chance of rain 60 percent.
.FRIDAY NIGHT...Mostly cloudy with showers and thunderstorms
likely in the evening, then partly cloudy after midnight. Lows in
the upper 60s. Southwest winds around 5 mph. Chance of rain
60 percent.
.SATURDAY...Mostly sunny. Humid with highs in the upper 80s.
Light and variable winds. Heat index values up to 101 in the
afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows around 70. Light
and variable winds, becoming south around 5 mph after midnight.
.SUNDAY...Sunny. Highs in the lower 90s. Heat index values up to
100.
.SUNDAY NIGHT AND MONDAY...Clear. Lows in the lower 70s. Highs in
the lower 90s. Heat index values up to 105.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows in the lower 70s.
Highs in the lower 90s. Heat index values up to 100.
.TUESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. A slight chance of thunderstorms. A chance of
showers. Lows in the lower 70s. Chance of rain 30 percent. Heat
index values up to 100 early in the evening.
.WEDNESDAY...Mostly sunny with a chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon. Highs in the upper 80s. Chance of
rain 40 percent. Heat index values up to 100.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A slight chance of thunderstorms. A chance of
showers. Lows in the lower 70s. Chance of rain 50 percent.
.THURSDAY...Partly sunny. A chance of showers with a slight
chance of thunderstorms in the morning, then showers likely with
a chance of thunderstorms in the afternoon. Highs in the mid 80s.
Chance of rain 60 percent.

$$

MOZ051-052-060-071500-
Montgomery MO-Lincoln MO-Warren MO-
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms. Near steady temperature in the upper 60s.
South winds around 5 mph. Chance of rain 20 percent.
.FRIDAY...Mostly sunny. Warmer with highs in the upper 80s.
Southwest winds around 5 mph.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Lows in the upper 60s. Southwest winds around
5 mph.
.SATURDAY...Sunny with highs in the upper 80s. West winds around
5 mph in the morning, becoming light and variable. Heat index
values up to 100 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows around 70.
Southeast winds around 5 mph. Heat index values up to 100 early
in the evening.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs in the lower
90s. Lows in the mid 70s. Heat index values up to 105.
.TUESDAY...Mostly sunny. Highs in the lower 90s. Heat index
values up to 105.
.TUESDAY NIGHT...Partly cloudy with a chance of showers. A chance
of thunderstorms, mainly in the evening. Lows in the lower 70s.
Chance of rain 50 percent. Heat index values up to 105 early in
the evening.
.WEDNESDAY...Mostly sunny with a slight chance of thunderstorms.
A chance of showers, mainly in the morning. Highs in the upper
80s. Chance of rain 50 percent.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a chance of
showers and thunderstorms. Lows in the upper 60s. Highs in the
lower 80s. Chance of rain 50 percent.

$$

ILZ058-059-098-099-071500-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s.
Southeast winds around 5 mph. Chance of rain 50 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the upper 80s. Southwest
winds around 5 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the upper 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Humid with highs in the upper 80s. West
winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. East winds
around 5 mph, becoming southeast after midnight.
.SUNDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 90s. Chance of
rain 20 percent. Heat index values up to 105.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the
mid 70s. Highs in the lower 90s. Heat index values up to 105.
.TUESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs around 90. Chance of rain
20 percent. Heat index values up to 100.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers
and thunderstorms. Lows in the lower 70s. Highs in the mid 80s.
Chance of rain 50 percent. Heat index values up to 100.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. A chance of
showers and thunderstorms. Lows in the upper 60s. Highs in the
lower 80s. Chance of rain 50 percent.

$$

ILZ060-064-065-071500-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s.
Southeast winds around 5 mph. Chance of rain 50 percent.
.FRIDAY...Mostly sunny. A chance of showers and thunderstorms in
the morning. Highs in the mid 80s. South winds around 5 mph.
Chance of rain 40 percent.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the upper 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Humid with highs in the upper 80s. West
winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Northwest
winds around 5 mph, becoming southeast after midnight.
.SUNDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs around 90. Chance of rain
20 percent. Heat index values up to 105 in the afternoon.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the lower 70s.
Highs in the lower 90s. Heat index values up to 105.
.MONDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 70s. Chance of rain
20 percent. Heat index values up to 100 early in the evening.
.TUESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 80s. Chance of
rain 20 percent. Heat index values up to 100.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers
and thunderstorms. Lows in the lower 70s. Highs in the mid 80s.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A chance of showers. A chance of thunderstorms,
mainly in the evening. Lows in the upper 60s. Chance of rain
50 percent.
.THURSDAY...Partly sunny in the morning, then becoming mostly
cloudy. A chance of showers with a slight chance of
thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.

$$

ILZ079-MOZ075-071500-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s. South
winds around 5 mph. Chance of rain 30 percent.
.FRIDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Warmer with highs around 90.
Southwest winds around 5 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Lows around 70. Southwest winds around 5 mph. Chance of rain
50 percent.
.SATURDAY...Mostly sunny. Humid with highs in the upper 80s.
Southwest winds around 5 mph. Heat index values up to 103 in the
afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
South winds around 5 mph. Heat index values up to 102 early in
the evening.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs in the mid 90s.
Lows in the mid 70s. Heat index values up to 105.
.TUESDAY NIGHT...Partly cloudy with a slight chance of
thunderstorms. A chance of showers. Lows in the lower 70s. Chance
of rain 40 percent. Heat index values up to 105 early in the
evening.
.WEDNESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
Heat index values up to 100.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly cloudy
with a chance of showers after midnight. Lows in the lower 70s.
Chance of rain 50 percent.
.THURSDAY...Partly sunny with a chance of showers with a slight
chance of thunderstorms in the morning, then mostly cloudy with a
chance of showers and thunderstorms in the afternoon. Highs in
the mid 80s. Chance of rain 50 percent.

$$

MOZ059-062-072-073-071500-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Mostly cloudy. Near steady temperature in the
upper 60s. South winds around 5 mph.
.FRIDAY...Partly sunny. Warmer with highs in the upper 80s.
Southwest winds around 5 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Lows in the upper 60s. Southwest
winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Sunny with highs in the upper 80s. West winds around
5 mph. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
Light and variable winds, becoming south around 5 mph after
midnight.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs in the mid
90s. Lows in the mid 70s. Heat index values up to 105.
.TUESDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Highs in the lower 90s. Chance of rain 20 percent.
Heat index values up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A chance of showers
and thunderstorms. Lows in the lower 70s. Highs in the upper 80s.
Chance of rain 40 percent. Heat index values up to 100.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly cloudy with a chance of
showers with a slight chance of thunderstorms after midnight.
Lows around 70. Chance of rain 50 percent.
.THURSDAY...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the morning, then showers likely with
a chance of thunderstorms in the afternoon. Highs in the lower
80s. Chance of rain 60 percent.

$$

ILZ102-MOZ065-071500-
Monroe IL-Jefferson MO-
228 AM CDT Fri Aug 7 2026

.REST OF TONIGHT...Cloudy with a chance of showers and
thunderstorms. Near steady temperature in the upper 60s. South
winds around 5 mph. Chance of rain 30 percent.
.FRIDAY...Mostly sunny. Warmer with highs around 90. Southwest
winds around 5 mph.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows around 70. Southwest winds
around 5 mph. Chance of rain 20 percent.
.SATURDAY...Sunny with highs around 90. West winds around 5 mph.
Heat index values up to 103.
.SATURDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Humid with lows in the lower 70s. Light and
variable winds, becoming south around 5 mph after midnight. Heat
index values up to 102 early in the evening.
.SUNDAY THROUGH TUESDAY...Mostly clear. Hot. Highs in the mid
90s. Lows in the mid 70s. Heat index values up to 110.
.TUESDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight. Lows in the mid
70s. Chance of rain 40 percent. Heat index values up to 105 early
in the evening.
.WEDNESDAY...Mostly sunny with a slight chance of thunderstorms.
A chance of showers, mainly in the morning. Highs in the upper
80s. Chance of rain 40 percent. Heat index values up to 100.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly cloudy
with a chance of showers after midnight. Lows around 70. Chance
of rain 50 percent.
.THURSDAY...Partly sunny with a chance of showers with a slight
chance of thunderstorms in the morning, then mostly cloudy with a
chance of showers and thunderstorms in the afternoon. Highs in
the lower 80s. Chance of rain 50 percent.

$$