158
FPUS53 KLSX 200325
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
1024 PM CDT Sat Jul 19 2025

ILZ100-101-MOZ061-063-064-201100-
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
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy. Near steady temperature in the
upper 70s. Southwest winds around 5 mph.
.SUNDAY...Mostly sunny. Humid with highs in the mid 90s.
Southwest winds 5 to 10 mph. Heat index values up to 109.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Humid with lows in the mid 70s. Southwest winds
around 5 mph, becoming east after midnight. Chance of rain
50 percent. Heat index values up to 106 early in the evening.
.MONDAY...Mostly cloudy in the morning, then becoming mostly
sunny. A slight chance of thunderstorms. A chance of showers,
mainly in the morning. Humid with highs in the lower 90s. West
winds around 5 mph. Chance of rain 50 percent. Heat index values
up to 106.
.MONDAY NIGHT...Partly cloudy. Humid with lows in the mid 70s.
Southeast winds around 5 mph. Heat index values up to 104 early
in the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the upper 70s. Heat index values up to 110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the upper 90s. Chance of rain
20 percent. Heat index values up to 110.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Lows in the upper 70s. Heat index values up to
105 early in the evening.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 110.

$$

MOZ042-049-050-201100-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the mid 70s. South winds around 5 mph.
Chance of rain 20 percent.
.SUNDAY...A slight chance of thunderstorms in the morning. Mostly
sunny with a slight chance of showers. Humid with highs in the
mid 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.
Heat index values up to 106 in the afternoon.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Humid with lows in the mid 70s. Southwest winds
5 to 10 mph, becoming southeast after midnight. Chance of rain
50 percent. Heat index values up to 105 early in the evening.
.MONDAY...Mostly sunny. A chance of showers and thunderstorms,
mainly in the morning. Humid with highs in the lower 90s. South
winds 5 to 10 mph. Chance of rain 50 percent. Heat index values
up to 103.
.MONDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
South winds around 5 mph. Heat index values up to 105 early in
the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
mid 90s. Lows in the mid 70s. Heat index values up to 105.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 100 early in the evening.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the mid 90s. Chance of rain 20 percent.
Heat index values up to 105.

$$

MOZ041-047-048-201100-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the mid 70s. South winds 5 to 10 mph.
Chance of rain 20 percent.
.SUNDAY...Mostly sunny. Humid with highs in the mid 90s.
Southwest winds 5 to 10 mph. Heat index values up to 106 in the
afternoon.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Humid with lows in the mid 70s. South winds 5 to
10 mph. Chance of rain 50 percent. Heat index values up to
105 early in the evening.
.MONDAY...Mostly sunny. A chance of showers and thunderstorms in
the morning. Humid with highs in the lower 90s. South winds 5 to
10 mph. Chance of rain 50 percent. Heat index values up to 106.
.MONDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
South winds around 5 mph. Heat index values up to 106 early in
the evening.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 105.
.WEDNESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values
up to 105 early in the evening.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 105.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.

$$

ILZ095>097-MOZ018-019-026-027-034>036-201100-
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
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
THURSDAY EVENING...

.REST OF TONIGHT...Partly cloudy late this evening, then becoming
mostly cloudy. A chance of thunderstorms with a slight chance of
showers. Lows in the mid 70s. South winds around 5 mph. Chance of
rain 40 percent.
.SUNDAY...Partly sunny with a chance of showers. A slight chance
of thunderstorms in the morning, then a chance of thunderstorms
in the afternoon. Humid with highs around 90. Southwest winds
5 to 10 mph. Chance of rain 50 percent. Heat index values up to
103.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Humid with lows in the lower 70s. East winds around
5 mph. Chance of rain 60 percent. Heat index values up to
101 early in the evening.
.MONDAY...Mostly cloudy with 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. Southeast winds around 5 mph. Chance of
rain 60 percent. Heat index values up to 102 in the afternoon.
.MONDAY NIGHT...Partly cloudy. Humid with lows in the mid 70s.
Southeast winds around 5 mph. Heat index values up to 102 early
in the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
mid 90s. Lows in the mid 70s. Heat index values up to 110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.
.FRIDAY NIGHT...Partly cloudy in the evening, then mostly clear
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.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the mid 90s. Chance of rain 20 percent.
Heat index values up to 105.

$$

ILZ069-070-074-201100-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
THURSDAY EVENING...

.REST OF TONIGHT...Partly cloudy. Near steady temperature in the
upper 70s. South winds around 5 mph.
.SUNDAY...Mostly sunny. Humid with highs in the lower 90s.
Southwest winds 5 to 10 mph. Heat index values up to 108.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Humid with lows in the mid 70s. South winds around
5 mph, becoming east after midnight. Chance of rain 50 percent.
Heat index values up to 106 early in the evening.
.MONDAY...Mostly cloudy in the morning, then becoming mostly
sunny. A chance of showers. A slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon.
Humid with highs in the upper 80s. North winds around 5 mph,
becoming west around 5 mph in the afternoon. Chance of rain
50 percent. Heat index values up to 104.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Humid with lows in the mid 70s.
East winds around 5 mph. Chance of rain 20 percent. Heat index
values up to 103 early in the evening.
.TUESDAY...Mostly sunny. Highs in the lower 90s. Heat index
values up to 110.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Hot. Lows
in the mid 70s. Highs in the mid 90s. Heat index values up to
110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Highs in the mid 90s. Chance of rain 20 percent.
Heat index values up to 110.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Highs in the lower 90s. Chance of
rain 30 percent. Heat index values up to 110.

$$

MOZ074-084-085-099-201100-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Mostly clear. Lows in the lower 70s. Southwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Southwest
winds 5 to 10 mph. Heat index values up to 106.
.SUNDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
Southwest winds around 5 mph. Heat index values up to 104 early
in the evening.
.MONDAY...Sunny, hot with highs in the mid 90s. Southwest winds
around 5 mph. Heat index values up to 106.
.MONDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
Southwest winds around 5 mph in the evening, becoming light and
variable. Heat index values up to 105 early in the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 105.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.
.FRIDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Lows in the lower 70s. Heat index values up to
100 early in the evening.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.

$$

MOZ051-052-060-201100-
Montgomery MO-Lincoln MO-Warren MO-
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy. Lows in the mid 70s. Southwest
winds around 5 mph.
.SUNDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Humid with highs in the mid 90s.
Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat
index values up to 107 in the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A chance of showers and thunderstorms. Humid with
lows in the lower 70s. Southwest winds around 5 mph, becoming
east around 5 mph after midnight. Chance of rain 50 percent. Heat
index values up to 105 early in the evening.
.MONDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Humid with highs in the lower 90s.
Southwest winds around 5 mph. Chance of rain 50 percent. Heat
index values up to 103.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Humid with lows in the mid 70s. Southeast winds
around 5 mph. Heat index values up to 103 early in the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
mid 90s. Lows in the mid 70s. Heat index values up to 110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 110.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.SATURDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the mid 90s. Chance of rain 20 percent.
Heat index values up to 105.

$$

ILZ058-059-098-099-201100-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
THURSDAY EVENING...

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

$$

ILZ060-064-065-201100-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
THURSDAY EVENING...

.REST OF TONIGHT...Partly cloudy. Near steady temperature in the
mid 70s. South winds around 5 mph.
.SUNDAY...Partly sunny. A chance of showers and thunderstorms in
the afternoon. Humid with highs in the lower 90s. Southwest winds
around 5 mph. Chance of rain 50 percent. Heat index values up to
104.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Humid with lows in the lower 70s. East winds around
5 mph. Chance of rain 60 percent. Heat index values up to
100 early in the evening.
.MONDAY...Mostly cloudy in the morning, then becoming partly
sunny. A chance of showers and thunderstorms. Humid with highs in
the upper 80s. North winds around 5 mph, becoming east around
5 mph in the afternoon. Chance of rain 50 percent. Heat index
values up to 100 in the afternoon.
.MONDAY NIGHT...Partly cloudy. Humid with lows in the lower 70s.
East winds around 5 mph.
.TUESDAY...Mostly 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 THROUGH THURSDAY NIGHT...Mostly clear. Lows in the
mid 70s. Highs in the mid 90s. Heat index values up to 110.
.FRIDAY...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 110.
.FRIDAY NIGHT...Partly cloudy. 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.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Highs in the lower 90s. Chance of
rain 30 percent. Heat index values up to 105.

$$

ILZ079-MOZ075-201100-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy. Lows in the mid 70s. South
winds around 5 mph.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Southwest
winds 5 to 10 mph. Heat index values up to 109.
.SUNDAY NIGHT...Mostly clear with a slight chance of showers and
thunderstorms. Humid with lows in the mid 70s. Southwest winds
around 5 mph. Chance of rain 20 percent. Heat index values up to
106 early in the evening.
.MONDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Hot with highs in the mid 90s.
West winds around 5 mph. Chance of rain 20 percent. Heat index
values up to 109 in the afternoon.
.MONDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
Southeast winds around 5 mph. Heat index values up to 107 early
in the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the upper 70s. Heat index values up to 110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 110.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 70s. Heat index values up to 105 early in
the evening.
.SATURDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Hot with highs
in the mid 90s. Chance of rain 20 percent. Heat index values up
to 110.

$$

MOZ059-062-072-073-201100-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy. Lows in the mid 70s. Southwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Southwest
winds 5 to 10 mph. Heat index values up to 107.
.SUNDAY NIGHT...Mostly clear with a slight chance of showers and
thunderstorms. Humid with lows in the mid 70s. Southwest winds
around 5 mph. Chance of rain 20 percent. Heat index values up to
106 early in the evening.
.MONDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Humid with highs in the mid 90s.
Southwest winds around 5 mph. Chance of rain 20 percent. Heat
index values up to 106.
.MONDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
South winds around 5 mph. Heat index values up to 106 early in
the evening.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 110.
.FRIDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 110.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Hot with highs in the mid 90s. Chance of rain
20 percent. Heat index values up to 105.

$$

ILZ102-MOZ065-201100-
Monroe IL-Jefferson MO-
1024 PM CDT Sat Jul 19 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THURSDAY...

.REST OF TONIGHT...Partly cloudy. Lows in the mid 70s. South
winds around 5 mph.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Southwest
winds around 5 mph. Heat index values up to 111.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Humid with lows in the mid 70s. Southwest winds
around 5 mph. Chance of rain 20 percent. Heat index values up to
107 early in the evening.
.MONDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Hot with highs in the mid 90s. West winds around
5 mph. Chance of rain 20 percent. Heat index values up to 111.
.MONDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
Southeast winds around 5 mph. Heat index values up to 108 early
in the evening.
.TUESDAY THROUGH FRIDAY NIGHT...Mostly clear. Hot. Highs in the
upper 90s. Lows in the mid 70s. Heat index values up to 115.
.SATURDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Hot with highs
in the mid 90s. Chance of rain 20 percent. Heat index values up
to 110.

$$