Zone Forecast Product
Issued by NWS St. Louis, MO

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FPUS53 KLSX 160244
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
943 PM CDT Wed Jul 15 2026

ILZ100-101-MOZ061-063-064-161000-
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
943 PM CDT Wed Jul 15 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Patchy fog after midnight. Lows in the lower 70s. East
winds around 5 mph, becoming south after midnight.
.THURSDAY...Patchy fog in the morning. Sunny with a slight chance
of showers and thunderstorms in the morning, then partly sunny
with a chance of showers and thunderstorms in the afternoon.
Humid with highs around 90. South winds around 5 mph. Chance of
rain 50 percent. Heat index values up to 101.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Humid with lows in the mid 70s. Southwest winds around 5 mph.
Chance of rain 50 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon. Humid with highs around 90. West winds
5 to 10 mph. Chance of rain 70 percent. Heat index values up to
102.
.FRIDAY NIGHT...Partly cloudy in the evening, then clearing. A
slight chance of showers and thunderstorms. Humid with lows in
the mid 70s. West winds around 5 mph. Chance of rain 20 percent.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.
Heat index values up to 105.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the
mid 70s. Highs in the lower 90s. Heat index values up to 100.
.TUESDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Highs in the lower 90s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

MOZ042-049-050-161000-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly clear. Lows in the lower 70s. East winds around
5 mph, becoming southwest after midnight.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon. Highs in the upper
80s. Southwest winds around 5 mph. Chance of rain 50 percent.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows in the lower 70s. Southwest winds around 5 mph.
Chance of rain 50 percent.
.FRIDAY...Sunny. A chance of showers and thunderstorms in the
afternoon. Humid with highs in the upper 80s. West winds 5 to
10 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. Southwest
winds 5 to 10 mph.
.SATURDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the
lower 90s. Lows in the lower 70s. Heat index values up to 100.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.

$$

MOZ041-047-048-161000-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly clear. Lows in the lower 70s. East winds around
5 mph, becoming south after midnight.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A chance of
showers and thunderstorms in the afternoon. Highs in the lower
90s. Southwest winds around 5 mph. Chance of rain 40 percent.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows in the lower 70s. Southwest winds around 5 mph.
Chance of rain 50 percent.
.FRIDAY...Sunny. A chance of showers and thunderstorms in the
afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph.
Chance of rain 40 percent.
.FRIDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 70s. Southwest
winds around 5 mph. Chance of rain 20 percent.
.SATURDAY THROUGH TUESDAY...Mostly clear. Hot. Highs in the mid
90s. Lows in the mid 70s. Heat index values up to 105.
.TUESDAY NIGHT...Mostly clear. Lows around 70.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

ILZ095>097-MOZ018-019-026-027-034>036-161000-
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
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 70s. Southeast winds around 5 mph, becoming southwest after
midnight.
.THURSDAY...Sunny. Patchy fog in the morning. A chance of showers
and thunderstorms in the afternoon. Highs around 90. Southwest
winds around 5 mph. Chance of rain 40 percent.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Humid with lows in the lower 70s. Southwest winds around 5 mph.
Chance of rain 30 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon. Humid with highs in the upper 80s. West
winds 5 to 10 mph. Chance of rain 70 percent. Heat index values
up to 100.
.FRIDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Humid with lows in the mid 70s.
Southwest winds 5 to 10 mph. Chance of rain 20 percent.
.SATURDAY THROUGH TUESDAY...Mostly clear. Highs in the lower 90s.
Lows in the lower 70s. Heat index values up to 105.
.TUESDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms after midnight. Lows in the upper 60s. Chance of
rain 20 percent.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.

$$

ILZ069-070-074-161000-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
943 PM CDT Wed Jul 15 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Patchy fog after midnight. Lows in the lower 70s. East
winds around 5 mph, becoming south after midnight.
.THURSDAY...Patchy fog in the morning. Sunny in the morning, then
partly sunny with a chance of showers and thunderstorms in the
afternoon. Humid with highs in the upper 80s. South winds around
5 mph. Chance of rain 50 percent. Heat index values up to 101.
.THURSDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms, mainly in the evening. Humid with lows in the
lower 70s. Southwest winds around 5 mph. Chance of rain
50 percent. Heat index values up to 100 early in the evening.
.FRIDAY...Mostly sunny. A chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon. Humid with highs in the upper 80s. West winds around
5 mph. Chance of rain 70 percent. Heat index values up to 101.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Humid with lows in the lower 70s.
Southwest winds around 5 mph. Chance of rain 20 percent.
.SATURDAY...Sunny with a chance of showers and thunderstorms.
Highs in the lower 90s. Chance of rain 30 percent. Heat index
values up to 105.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly clear after
midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat
index values up to 105 early in the evening.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs around 90. Lows in
the lower 70s. Heat index values up to 100.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 90s.
Lows in the mid 70s. Heat index values up to 100.
.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 100.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the upper
60s. Highs in the mid 80s.

$$

MOZ074-084-085-099-161000-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly cloudy with a chance of showers and
thunderstorms this evening, then partly cloudy after midnight.
Patchy fog after midnight. Lows around 70. South winds around
5 mph this evening, becoming light and variable. Chance of rain
50 percent.
.THURSDAY...Partly sunny. Patchy fog in the morning. A chance of
showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon. Humid with highs in the
mid 80s. West winds around 5 mph. Chance of rain 60 percent.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows around 70. West winds around 5 mph. Chance of
rain 50 percent.
.FRIDAY...Mostly sunny. A chance of showers and thunderstorms in
the afternoon. Humid with highs in the upper 80s. West winds
around 5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. West winds
around 5 mph.
.SATURDAY...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.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 70s.
.SUNDAY...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 100.
.SUNDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
lower 70s. Highs in the lower 90s. Heat index values up to 100.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

MOZ051-052-060-161000-
Montgomery MO-Lincoln MO-Warren MO-
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 70s. East winds around 5 mph, becoming southwest after
midnight.
.THURSDAY...Patchy fog in the morning. Sunny with a slight chance
of showers and thunderstorms in the morning, then partly sunny
with a chance of showers and thunderstorms in the afternoon.
Humid with highs around 90. West winds around 5 mph. Chance of
rain 50 percent. Heat index values up to 100.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Humid with lows in the lower 70s. Southwest winds around 5 mph.
Chance of rain 40 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Humid with highs in the upper
80s. West winds around 5 mph. Chance of rain 50 percent. Heat
index values up to 100.
.FRIDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
Southwest winds around 5 mph.
.SATURDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the
lower 90s. Lows in the lower 70s. Heat index values up to 105.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.

$$

ILZ058-059-098-099-161000-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
943 PM CDT Wed Jul 15 2026

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

$$

ILZ060-064-065-161000-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
943 PM CDT Wed Jul 15 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 70s. Southeast winds around 5 mph.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A chance of
showers and thunderstorms in the afternoon. Humid with highs in
the upper 80s. Southeast winds around 5 mph, becoming southwest
in the afternoon. Chance of rain 50 percent. Heat index values up
to 100.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy with a slight
chance of showers and thunderstorms after midnight. Humid with
lows in the lower 70s. Southwest winds around 5 mph. Chance of
rain 40 percent.
.FRIDAY...Mostly sunny. A chance of showers and thunderstorms in
the morning, then showers and thunderstorms in the afternoon.
Humid with highs in the upper 80s. West winds around 5 mph.
Chance of rain 80 percent.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Humid with lows in the lower 70s. Southwest winds
around 5 mph. Chance of rain 20 percent.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the morning, then a chance of showers and thunderstorms in the
afternoon. Highs around 90. Chance of rain 30 percent. Heat index
values up to 105.
.SATURDAY NIGHT...Mostly clear. A slight chance of showers and
thunderstorms in the evening. Lows in the lower 70s. Chance of
rain 20 percent. Heat index values up to 100 early in the
evening.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs in the upper 80s.
Lows in the upper 60s.
.MONDAY NIGHT AND TUESDAY...Mostly clear. A slight chance of
showers and thunderstorms. Lows in the lower 70s. Highs in the
upper 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 60s.
.WEDNESDAY...Mostly sunny. Highs in the lower 80s.

$$

ILZ079-MOZ075-161000-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
943 PM CDT Wed Jul 15 2026

.TONIGHT...Partly cloudy. A slight chance of showers and
thunderstorms this evening. Patchy fog after midnight. Lows in
the lower 70s. Southeast winds around 5 mph, becoming southwest
after midnight. Chance of rain 20 percent.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon. Humid with highs in
the upper 80s. Southwest winds around 5 mph. Chance of rain
60 percent. Heat index values up to 100.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows in the lower 70s. West winds around 5 mph. Chance
of rain 50 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Humid with highs in the upper
80s. West winds around 5 mph. Chance of rain 50 percent. Heat
index values up to 101.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows in the lower 70s. West winds around 5 mph. Chance
of rain 20 percent. Heat index values up to 100 early in the
evening.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.
Heat index values up to 105.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 70s. Heat index
values up to 100 early in the evening.
.SUNDAY...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 100.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the lower 70s.
Highs in the lower 90s. Heat index values up to 105.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the mid 70s.
Highs in the lower 90s. Heat index values up to 100.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

MOZ059-062-072-073-161000-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
943 PM CDT Wed Jul 15 2026

.TONIGHT...Partly cloudy. A slight chance of showers and
thunderstorms this evening. Patchy fog after midnight. Lows
around 70. Southeast winds around 5 mph, becoming southwest after
midnight. Chance of rain 20 percent.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of showers and thunderstorms in the morning, then
thunderstorms likely with a chance of showers in the afternoon.
Humid with highs in the upper 80s. West winds around 5 mph.
Chance of rain 60 percent.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Humid with lows in the lower 70s. Southwest winds around 5 mph.
Chance of rain 50 percent.
.FRIDAY...Sunny. A chance of showers and thunderstorms in the
afternoon. Humid with highs in the upper 80s. West winds around
5 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 70s. Southwest
winds around 5 mph.
.SATURDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the
lower 90s. Lows in the lower 70s. Heat index values up to 100.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$

ILZ102-MOZ065-161000-
Monroe IL-Jefferson MO-
943 PM CDT Wed Jul 15 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
clear. Patchy fog after midnight. Lows in the lower 70s.
Southeast winds around 5 mph this evening, becoming light and
variable.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon. Humid with highs
in the upper 80s. West winds around 5 mph, becoming south around
5 mph in the afternoon. Chance of rain 50 percent. Heat index
values up to 102.
.THURSDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Humid with lows in the lower 70s.
West winds around 5 mph. Chance of rain 50 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Humid with highs around 90. West
winds around 5 mph. Chance of rain 50 percent. Heat index values
up to 101.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Humid with lows in the lower 70s. Southwest winds
around 5 mph.
.SATURDAY...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.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the mid
70s. Highs in the lower 90s. Heat index values up to 105.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.

$$