377
FPUS53 KLSX 241024
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
523 AM CDT Fri Jul 24 2026

ILZ100-101-MOZ061-063-064-241800-
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
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Partly sunny with a slight chance of showers this
morning, then mostly cloudy with a chance of showers this
afternoon. Highs in the upper 70s. Southeast winds around 5 mph.
Chance of rain 50 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Lows in the upper 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. Humid with
highs in the upper 80s. South winds around 5 mph. Chance of rain
50 percent. Heat index values up to 100 in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Southeast winds around 5 mph in the evening, becoming light
and variable. Heat index values up to 101 early in the evening.
.SUNDAY...Mostly sunny. Humid with highs in the mid 90s.
Southwest winds around 5 mph. Heat index values up to 109.
.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 AND TUESDAY...Mostly clear. Hot. Lows in the upper
70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.WEDNESDAY...Sunny. Highs in the lower 90s.
.WEDNESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows in the lower 70s.
.THURSDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the lower 90s. Chance of rain 20 percent.

$$

MOZ042-049-050-241800-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Showers this morning, then showers with a slight chance
of thunderstorms this afternoon. Highs in the lower 70s.
Southeast winds 5 to 10 mph. Chance of rain 90 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Near steady temperature in the upper
60s. Southeast winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly sunny. A chance of showers with a slight
chance of thunderstorms in the morning. Much warmer. Humid with
highs in the upper 80s. Southwest winds around 5 mph. Chance of
rain 40 percent. Heat index values up to 102 in the afternoon.
.SATURDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Humid with lows in the lower 70s. South winds
around 5 mph in the evening, becoming light and variable. Heat
index values up to 104 early in the evening.
.SUNDAY...Mostly sunny. Humid with highs in the mid 90s. South
winds around 5 mph. Heat index values up to 109.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
mid 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index
values up to 100 early in the evening.
.WEDNESDAY...Sunny. Highs in the lower 90s.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 70s.
.THURSDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the lower 90s. Chance of rain 20 percent.

$$

MOZ041-047-048-241800-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Showers. A slight chance of thunderstorms this
afternoon. Highs in the mid 70s. Southeast winds around 5 mph.
Chance of rain 90 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Near steady temperature in the lower
70s. Southeast winds around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly sunny. A chance of showers with a slight
chance of thunderstorms in the morning. Much warmer. Humid with
highs in the lower 90s. Southwest winds around 5 mph. Chance of
rain 40 percent. Heat index values up to 106 in the afternoon.
.SATURDAY NIGHT...Mostly clear. Humid with lows in the mid 70s.
South winds around 5 mph in the evening, becoming light and
variable. Heat index values up to 107 early in the evening.
.SUNDAY...Sunny, hot with highs in the mid 90s. South winds
around 5 mph. Heat index values up to 111.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
upper 70s. Highs in the mid 90s. Heat index values up to 110.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the mid 70s. Highs in the lower 90s. Heat index values up to 105.
.THURSDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.
Heat index values up to 100.

$$

ILZ095>097-MOZ018-019-026-027-034>036-241800-
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
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Mostly cloudy with a chance of showers. A slight chance
of thunderstorms this afternoon. Highs in the mid 70s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Lows in the mid 60s. Southeast winds
around 5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms in the morning, then mostly 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 100 in
the afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. South winds around 5 mph in the evening, becoming light and
variable. Heat index values up to 101 early in the evening.
.SUNDAY...Mostly sunny. Humid with highs in the lower 90s.
Southwest winds around 5 mph. Heat index values up to 109.
.SUNDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 70s. Heat index values up to 110 early in
the evening.
.MONDAY THROUGH TUESDAY...Mostly clear. Highs in the mid 90s.
Lows in the mid 70s. Heat index values up to 110.
.TUESDAY 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.
.WEDNESDAY...Sunny. Highs around 90.
.WEDNESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows around 70.
.THURSDAY...Mostly sunny. A slight chance of showers in the
morning. Highs around 90. Chance of rain 20 percent.

$$

ILZ069-070-074-241800-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Mostly sunny this morning, then mostly cloudy with a
slight chance of showers this afternoon. Highs around 80. Light
and variable winds. Chance of rain 20 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Lows in the mid 60s. Light and variable
winds. 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. Highs in
the mid 80s. South winds around 5 mph. Chance of rain 50 percent.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Light and variable winds.
.SUNDAY...Mostly sunny. Humid with highs in the lower 90s. Light
and variable winds. Heat index values up to 109 in the afternoon.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Hot. Lows in the mid
70s. Highs in the mid 90s. Heat index values up to 115.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows in the mid 70s.
Highs in the mid 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...Sunny. Highs around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 70.
.THURSDAY...Mostly sunny. A slight chance of showers in the
morning. Highs around 90. Chance of rain 20 percent.

$$

MOZ074-084-085-099-241800-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Partly sunny this morning, then becoming mostly cloudy.
A 50 percent chance of showers. Highs in the upper 70s. Light and
variable winds, becoming southeast around 5 mph this afternoon.
.TONIGHT...Mostly 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 60s. Southeast winds around
5 mph. Chance of rain 40 percent.
.SATURDAY...Mostly cloudy in the morning, then becoming partly
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. Southwest winds around 5 mph.
Chance of rain 40 percent. Heat index values up to 103 in the
afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Light and variable winds. Heat index values up to 100 early
in the evening.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Light and
variable winds. Heat index values up to 108.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Hot. Lows in the
mid 70s. Highs in the upper 90s. Heat index values up to 105.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the lower 70s. Highs in the lower 90s. Heat index values up to
105.
.THURSDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the
lower 90s. Chance of rain 20 percent.

$$

MOZ051-052-060-241800-
Montgomery MO-Lincoln MO-Warren MO-
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Mostly cloudy. A chance of showers this morning, then
showers with a slight chance of thunderstorms this afternoon.
Highs in the mid 70s. Southeast winds around 5 mph. Chance of
rain 80 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. 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. Warmer with highs in the upper 80s. South winds
around 5 mph. Chance of rain 50 percent. Heat index values up to
102 in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Light and variable winds. Heat index values up to 103 early
in the evening.
.SUNDAY...Mostly sunny. Humid with highs in the mid 90s. Light
and variable winds. Heat index values up to 109.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Hot. Lows in the mid
70s. Highs in the upper 90s. Heat index values up to 110.
.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 110 early in the evening.
.TUESDAY...Sunny. Highs in the mid 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...Sunny. Highs in the lower 90s.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 70.
.THURSDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the lower 90s. Chance of rain 20 percent.

$$

ILZ058-059-098-099-241800-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Partly sunny this morning, then mostly cloudy with a
chance of showers this afternoon. Highs in the upper 70s.
Southeast winds around 5 mph. Chance of rain 50 percent.
.TONIGHT...Mostly cloudy with a slight chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the mid 60s. South winds around 5 mph. Chance
of rain 60 percent.
.SATURDAY...Partly sunny. A chance of showers and thunderstorms
in the morning. 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. Humid with lows in the upper 60s. Southeast winds
around 5 mph in the evening, becoming light and variable.
.SUNDAY...Mostly sunny. Humid with highs in the lower 90s.
Southwest winds around 5 mph. Heat index values up to 107.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 70s. Heat index
values up to 105 early in the evening.
.MONDAY 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. Lows in the lower 70s. Heat index
values up to 105 early in the evening.
.WEDNESDAY...Sunny. Highs around 90.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the upper
60s. Highs around 90.

$$

ILZ060-064-065-241800-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Mostly sunny this morning, then mostly cloudy with a
slight chance of showers this afternoon. Highs in the upper 70s.
Light and variable winds, becoming south around 5 mph this
afternoon. Chance of rain 20 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Lows in the mid 60s. Light and variable
winds, becoming south around 5 mph after midnight. 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. South winds around 5 mph. Chance of rain
50 percent.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 60s. South
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Mostly sunny. Humid with highs in the lower 90s. Light
and variable winds, becoming southwest around 5 mph in the
afternoon. Heat index values up to 106.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 70s. Heat index
values up to 105 early in the evening.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the mid
90s. Lows in the lower 70s. Heat index values up to 110.
.WEDNESDAY...Sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the upper
60s. Highs in the upper 80s.

$$

ILZ079-MOZ075-241800-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

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

$$

MOZ059-062-072-073-241800-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Mostly cloudy. A chance of showers this morning, then
showers likely with a slight chance of thunderstorms this
afternoon. Highs in the mid 70s. Southeast winds around 5 mph.
Chance of rain 70 percent.
.TONIGHT...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms. Lows in the mid 60s. Southeast winds
around 5 mph. Chance of rain 50 percent.
.SATURDAY...Partly sunny with a slight chance of thunderstorms. A
chance of showers, mainly in the morning. Warmer with highs in
the upper 80s. Southwest winds around 5 mph. Chance of rain
40 percent. Heat index values up to 103 in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Light and variable winds. Heat index values up to 102 early
in the evening.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Light and
variable winds. Heat index values up to 108.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Hot. Lows in the mid
70s. Highs in the upper 90s. Heat index values up to 110.
.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 105 early in the evening.
.TUESDAY...Sunny, hot with highs in the mid 90s. Heat index
values up to 105.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the lower
70s. Highs in the lower 90s. Heat index values up to 105.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers
after midnight. Lows around 70. Chance of rain 20 percent.
.THURSDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the
lower 90s. Chance of rain 20 percent.

$$

ILZ102-MOZ065-241800-
Monroe IL-Jefferson MO-
523 AM CDT Fri Jul 24 2026

...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...Partly sunny this morning, then becoming mostly cloudy.
A 50 percent chance of showers. Highs in the upper 70s. Southeast
winds around 5 mph.
.TONIGHT...Mostly cloudy with a slight chance of thunderstorms. A
chance of showers. Lows in the mid 60s. Southeast winds around
5 mph. Chance of rain 50 percent.
.SATURDAY...Mostly cloudy in the morning, then becoming partly
sunny. A chance of showers with a slight chance of thunderstorms.
Warmer with highs in the upper 80s. South winds around 5 mph.
Chance of rain 50 percent. Heat index values up to 102 in the
afternoon.
.SATURDAY NIGHT...Partly cloudy. Humid with lows in the lower
70s. Southeast winds around 5 mph in the evening, becoming light
and variable. Heat index values up to 102 early in the evening.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. Light and
variable winds. 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. 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 110 early in the evening.
.TUESDAY...Sunny, hot with highs in the mid 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 AND WEDNESDAY NIGHT...Mostly clear. Highs in the lower
90s. Lows around 70. Heat index values up to 100.
.THURSDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the
lower 90s. Chance of rain 20 percent. Heat index values up to
100.

$$