788
FPUS53 KLSX 200128
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
827 PM CDT Sat Sep 19 2026

ILZ100-101-MOZ061-063-064-200900-
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
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds
around 5 mph.
.SUNDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 90s. West
winds around 5 mph. Chance of rain 20 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the upper 60s. Northeast winds 5 to 10 mph.
Chance of rain 70 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs around 80. Northeast
winds 5 to 10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening, then a slight chance of
showers after midnight. Lows around 60. Northeast winds 5 to
10 mph. Chance of rain 50 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the lower
70s. Lows in the mid 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the mid 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the upper 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the lower 80s.

$$

MOZ042-049-050-200900-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
cloudy. Lows in the upper 60s. Southwest winds around 5 mph.
.SUNDAY...Partly sunny with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Highs in the upper 80s.
West winds around 5 mph. Chance of rain 20 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers after midnight.
Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain
90 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs in the mid 70s.
Northeast winds 5 to 10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy. A slight chance of showers in the
evening. Lows in the upper 50s. North winds 5 to 10 mph. Chance
of rain 20 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the upper
60s. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the mid 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the upper 70s.

$$

MOZ041-047-048-200900-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
cloudy. Lows around 70. Southwest winds around 5 mph.
.SUNDAY...Partly sunny. A chance of showers in the morning, then
a slight chance of showers and thunderstorms in the afternoon.
Highs in the upper 80s. West winds around 5 mph. Chance of rain
40 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers after midnight.
Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain
90 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs in the mid 70s. North
winds 5 to 10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy. A slight chance of showers in the
evening. Lows in the upper 50s. North winds 5 to 10 mph. Chance
of rain 20 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs around 70. Lows
in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT...Mostly cloudy. A slight chance of showers after
midnight. Lows in the upper 50s. Chance of rain 20 percent.
.FRIDAY...Partly sunny. A chance of showers, mainly in the
morning. Highs in the upper 70s. Chance of rain 30 percent.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows around 60. Highs
around 80.

$$

ILZ095>097-MOZ018-019-026-027-034>036-200900-
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
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy this evening, then mostly cloudy with a
chance of showers with a slight chance of thunderstorms after
midnight. Lows in the upper 60s. Southwest winds around 5 mph,
becoming west around 5 mph after midnight. Chance of rain
50 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. Cooler with highs in the lower 80s. Northwest
winds 5 to 10 mph. Chance of rain 50 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers after midnight.
Lows in the lower 60s. Northeast winds 5 to 10 mph with gusts up
to 20 mph. Chance of rain 90 percent.
.MONDAY...A slight chance of thunderstorms. Showers, cooler with
highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up
to 20 mph. Chance of rain 90 percent.
.MONDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the
evening. Lows in the mid 50s. Northeast winds 5 to 10 mph. Chance
of rain 50 percent.
.TUESDAY...Mostly cloudy with a slight chance of showers in the
morning, then partly sunny in the afternoon. Highs in the mid
60s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
upper 60s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the lower 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the upper 50s. Highs in the mid 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the mid 70s.

$$

ILZ069-070-074-200900-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows in the lower 70s. South winds
around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 90s. West winds around
5 mph.
.SUNDAY 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. Northeast winds 5 to 10 mph.
Chance of rain 70 percent.
.MONDAY...Mostly cloudy in the morning, then becoming partly
sunny. A chance of showers with a slight chance of thunderstorms.
Cooler with highs in the lower 80s. Northeast winds 5 to 10 mph.
Chance of rain 50 percent.
.MONDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms. Lows around 60. Northeast winds
5 to 10 mph. Chance of rain 50 percent.
.TUESDAY...Mostly cloudy with a slight chance of showers in the
morning, then partly sunny in the afternoon. Highs in the lower
70s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the mid
70s. Lows in the mid 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the upper 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the lower 80s.

$$

MOZ074-084-085-099-200900-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
827 PM CDT Sat Sep 19 2026

.TONIGHT...Mostly clear this evening, then becoming partly
cloudy. Lows around 70. Southwest winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 90s. West winds around
5 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy with a chance of
showers and thunderstorms after midnight. Lows in the upper 60s.
Northeast winds around 5 mph. Chance of rain 50 percent.
.MONDAY...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.
Northeast winds around 5 mph. Chance of rain 70 percent.
.MONDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of showers. Lows around 60.
North winds around 5 mph. Chance of rain 20 percent.
.TUESDAY...Partly sunny. Cooler with highs in the mid 70s.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows in
the mid 50s. Highs in the mid 70s.
.FRIDAY...Partly sunny with a 20 percent chance of showers. Highs
in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 50s.
Highs in the lower 80s.

$$

MOZ051-052-060-200900-
Montgomery MO-Lincoln MO-Warren MO-
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows in the upper 60s. Southwest winds
around 5 mph.
.SUNDAY...Partly sunny. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. Highs in the upper 80s. West winds around 5 mph.
Chance of rain 50 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers after midnight.
Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain
90 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs in the mid 70s.
Northeast winds around 5 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the
evening. Lows in the upper 50s. North winds 5 to 10 mph. Chance
of rain 50 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the upper
60s. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the mid 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the upper 70s.

$$

ILZ058-059-098-099-200900-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows around 70. South winds around
5 mph.
.SUNDAY...Partly sunny. A chance of showers and thunderstorms in
the afternoon. Highs in the upper 80s. West winds 5 to 10 mph.
Chance of rain 50 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Chance of rain 70 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs in the mid 70s.
Northeast winds 5 to 10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy with a 50 percent chance of
showers. Lows in the mid 50s. Northeast winds 5 to 10 mph.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the upper
60s. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the mid 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 50s.
Highs around 80.

$$

ILZ060-064-065-200900-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
827 PM CDT Sat Sep 19 2026

.TONIGHT...Mostly cloudy this evening, then becoming partly
cloudy. Lows around 70. South winds around 5 mph.
.SUNDAY...Partly sunny. A chance of showers and thunderstorms in
the afternoon. Highs in the lower 90s. West winds 5 to 10 mph.
Chance of rain 50 percent.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Chance of rain 70 percent.
.MONDAY...A slight chance of thunderstorms. Showers likely,
mainly in the morning. Cooler with highs in the upper 70s.
Northeast winds 5 to 10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Lows in the upper 50s.
Northeast winds 5 to 10 mph. Chance of rain 50 percent.
.TUESDAY...Mostly cloudy with a slight chance of showers in the
morning, then partly sunny in the afternoon. Highs in the lower
70s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs in the
lower 70s. Lows in the lower 50s.
.THURSDAY...Partly sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. A 20 percent chance
of showers. Lows in the mid 50s. Highs in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 50s.
Highs around 80.

$$

ILZ079-MOZ075-200900-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
827 PM CDT Sat Sep 19 2026

.TONIGHT...Mostly clear. Lows in the lower 70s. Southwest winds
around 5 mph.
.SUNDAY...Mostly sunny. Hot with highs in the mid 90s. West winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms in the evening, then mostly cloudy with a chance of
showers and thunderstorms after midnight. Lows in the mid 60s.
Northeast winds around 5 mph. Chance of rain 50 percent.
.MONDAY...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms in the morning, then partly sunny with
showers likely with a chance of thunderstorms in the afternoon.
Cooler with highs in the mid 80s. Northeast winds 5 to 10 mph.
Chance of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy with a slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight. Lows around 60. North winds
5 to 10 mph. Chance of rain 50 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the mid 70s.
Lows in the mid 50s.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the mid
70s. Lows in the lower 50s.
.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 50s.
.FRIDAY...Partly sunny with a 20 percent chance of showers. Highs
in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 50s.
Highs in the lower 80s.

$$

MOZ059-062-072-073-200900-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds
around 5 mph.
.SUNDAY...Mostly sunny. Highs in the lower 90s. West winds around
5 mph.
.SUNDAY 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. Northeast winds around 5 mph.
Chance of rain 70 percent.
.MONDAY...Showers likely with a slight chance of thunderstorms.
Cooler with highs around 80. Northeast winds around 5 mph. Chance
of rain 70 percent.
.MONDAY NIGHT...Mostly cloudy. A slight chance of showers in the
evening. Lows in the upper 50s. North winds around 5 mph. Chance
of rain 20 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the lower
70s. Lows in the lower 50s.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the lower
70s. Lows in the lower 50s.
.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the mid 50s.
.FRIDAY...Partly sunny with a 20 percent chance of showers. Highs
in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 50s.
Highs around 80.

$$

ILZ102-MOZ065-200900-
Monroe IL-Jefferson MO-
827 PM CDT Sat Sep 19 2026

.TONIGHT...Partly cloudy. Lows in the lower 70s. Southwest winds
around 5 mph.
.SUNDAY...Mostly sunny. Highs in the lower 90s. West winds around
5 mph. Heat index values up to 100.
.SUNDAY 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. Northeast winds around 5 mph.
Chance of rain 70 percent.
.MONDAY...Mostly cloudy with a chance of showers with a slight
chance of thunderstorms in the morning, then showers likely with
a chance of thunderstorms in the afternoon. Cooler with highs in
the lower 80s. Northeast winds around 5 mph. Chance of rain
70 percent.
.MONDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening, then a slight chance of
showers after midnight. Lows in the upper 50s. North winds 5 to
10 mph. Chance of rain 50 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs in the lower
70s. Lows in the mid 50s.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs in the mid
70s. Lows in the lower 50s.
.THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s.
.FRIDAY...Partly sunny with a 20 percent chance of showers. Highs
in the upper 70s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the upper
50s. Highs in the lower 80s.

$$