Zone Forecast Product
Issued by NWS St. Louis, MO

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FPUS53 KLSX 100209
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
908 PM CDT Sat May 9 2026

ILZ100-101-MOZ061-063-064-101000-
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
908 PM CDT Sat May 9 2026

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

$$

MOZ042-049-050-101000-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
908 PM CDT Sat May 9 2026

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

$$

MOZ041-047-048-101000-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
908 PM CDT Sat May 9 2026

.TONIGHT...Mostly cloudy with a chance of showers. A chance of
thunderstorms, mainly this evening. Lows in the lower 50s.
Northwest winds 5 to 10 mph, becoming north after midnight.
Chance of rain 50 percent.
.SUNDAY...Partly sunny. Cooler with highs in the upper 60s.
Northeast winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
clear. Cooler with lows in the lower 40s. Northeast winds around
5 mph in the evening, becoming light and variable.
.MONDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 50s. South winds 5 to
10 mph.
.TUESDAY...Sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly clear after
midnight. Lows in the mid 50s. Chance of rain 20 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the upper 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the lower 80s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows around 60. Highs around 90.
Chance of rain 20 percent.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. 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.

$$

ILZ095>097-MOZ018-019-026-027-034>036-101000-
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
908 PM CDT Sat May 9 2026

.TONIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms this evening. Lows in the lower 50s.
Northwest winds 5 to 10 mph with gusts up to 25 mph, becoming
north after midnight. Chance of rain 50 percent.
.SUNDAY...Mostly sunny. Cooler with highs in the upper 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northeast
winds around 5 mph in the evening, becoming light and variable.
.MONDAY...Sunny. Highs in the mid 70s. West winds 5 to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
5 to 10 mph. Gusts up to 25 mph after midnight.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the lower 80s. Lows in the
mid 50s. Chance of rain 20 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the mid 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the upper 70s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
upper 80s. Chance of rain 20 percent.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
lower 90s. Chance of rain 20 percent.

$$

ILZ069-070-074-101000-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
908 PM CDT Sat May 9 2026

.TONIGHT...Mostly clear this evening, then mostly cloudy with
showers likely with a chance of thunderstorms after midnight.
Lows in the mid 50s. Southwest winds around 5 mph, becoming north
with gusts up to 25 mph after midnight. Chance of rain
60 percent.
.SUNDAY...Partly sunny. Cooler with highs in the upper 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Cooler with lows in the mid 40s. North winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 70s. Light and variable
winds, becoming northwest around 5 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
.TUESDAY...Sunny. Highs in the upper 70s.
.TUESDAY NIGHT...Mostly clear with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the upper
50s. Chance of rain 40 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the mid 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the lower 70s.
.THURSDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows in the mid 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A 20 percent chance of
showers. Highs in the lower 80s. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.

$$

MOZ074-084-085-099-101000-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
908 PM CDT Sat May 9 2026

.TONIGHT...Mostly clear this evening, then becoming partly
cloudy. Lows in the mid 50s. Southwest winds around 5 mph,
becoming northwest after midnight.
.SUNDAY...Partly sunny in the morning, then becoming mostly
cloudy. Cooler with highs in the lower 70s. North winds 5 to
10 mph with gusts up to 20 mph.
.SUNDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Cooler with lows in the mid 40s. North winds 5 to
10 mph.
.MONDAY...Sunny. Highs in the mid 70s. Northeast winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 40s. Northeast winds
around 5 mph, becoming south after midnight.
.TUESDAY...Sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. A slight chance of thunderstorms in the evening. A
slight chance of showers. Not as cool with lows in the upper 50s.
Chance of rain 20 percent.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs around 80. Lows in the
upper 40s.
.THURSDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the mid
50s. Chance of rain 20 percent.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the upper 80s. Lows in the
lower 60s. Chance of rain 20 percent.
.SATURDAY...Sunny. Highs in the lower 90s.

$$

MOZ051-052-060-101000-
Montgomery MO-Lincoln MO-Warren MO-
908 PM CDT Sat May 9 2026

.TONIGHT...Partly cloudy with showers likely with a chance of
thunderstorms this evening, then mostly cloudy with a chance of
showers with a slight chance of thunderstorms after midnight.
Lows in the lower 50s. Northwest winds 5 to 10 mph with gusts up
to 20 mph, becoming north after midnight. Chance of rain
70 percent.
.SUNDAY...Partly sunny. Cooler with highs in the mid 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
clear. Cooler with lows in the lower 40s. North winds around
5 mph in the evening, becoming light and variable.
.MONDAY...Sunny. Highs in the lower 70s. West winds around 5 mph.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.TUESDAY...Sunny. Highs around 80.
.TUESDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms in the evening, then mostly clear with a slight
chance of showers after midnight. Lows in the mid 50s. Chance of
rain 40 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the mid 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the mid 70s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the mid
80s. Chance of rain 20 percent.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
lower 90s. Chance of rain 20 percent.

$$

ILZ058-059-098-099-101000-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
908 PM CDT Sat May 9 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
cloudy. A slight chance of thunderstorms. Showers likely, mainly
this evening. Lows in the lower 50s. Southwest winds 5 to 10 mph
with gusts up to 25 mph, becoming north after midnight. Chance of
rain 70 percent.
.SUNDAY...Mostly sunny. Cooler with highs in the upper 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
clear. Cooler with lows in the lower 40s. North winds 5 to 10 mph
in the evening, becoming light and variable.
.MONDAY...Sunny. Highs in the lower 70s. Northwest winds 5 to
10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.TUESDAY...Sunny. A slight chance of showers and thunderstorms in
the afternoon. Highs in the upper 70s. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly clear
with a slight chance of showers after midnight. Lows in the mid
50s. Chance of rain 40 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the lower 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the lower 70s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the
lower 80s. Chance of rain 20 percent.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows around 60. Highs around 90.
Chance of rain 20 percent.

$$

ILZ060-064-065-101000-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
908 PM CDT Sat May 9 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
cloudy. A chance of thunderstorms. A chance of showers this
evening, then showers likely after midnight. Lows in the lower
50s. West winds around 5 mph, becoming north with gusts up to
25 mph after midnight. Chance of rain 60 percent.
.SUNDAY...Mostly sunny. Cooler with highs in the mid 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Cooler with lows in the lower 40s. Northeast winds around 5 mph.
.MONDAY...Sunny. Highs around 70. Northwest winds 5 to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows in the mid 40s. Southwest
winds around 5 mph, becoming southeast after midnight.
.TUESDAY...Sunny. Highs in the mid 70s.
.TUESDAY NIGHT...Partly 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 mid 50s. Chance of rain
50 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the lower 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the lower 70s.
.THURSDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows in the lower 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the upper 70s. Lows around
60. Chance of rain 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 80s.

$$

ILZ079-MOZ075-101000-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
908 PM CDT Sat May 9 2026

.TONIGHT...Mostly clear this evening, then becoming mostly
cloudy. Lows in the mid 50s. Southwest winds around 5 mph,
becoming northwest with gusts up to 20 mph after midnight.
.SUNDAY...Partly sunny. Cooler with highs in the upper 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy in the evening, then clearing.
Cooler with lows in the mid 40s. North winds 5 to 10 mph.
.MONDAY...Sunny. Highs in the lower 70s. Northeast winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 40s. East winds around
5 mph, becoming south after midnight.
.TUESDAY...Sunny. Highs around 80.
.TUESDAY NIGHT...Mostly clear with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the upper
50s. Chance of rain 30 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the upper 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the mid 70s.
.THURSDAY NIGHT...Mostly clear in the evening, then becoming
partly cloudy. Lows in the mid 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the mid 80s. Lows in the
lower 60s. Chance of rain 20 percent.
.SATURDAY...Sunny. Highs around 90.

$$

MOZ059-062-072-073-101000-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
908 PM CDT Sat May 9 2026

.TONIGHT...Partly cloudy with a chance of showers with a slight
chance of thunderstorms this evening, then mostly cloudy with a
slight chance of showers after midnight. Lows in the mid 50s.
Southwest winds around 5 mph, becoming north after midnight.
Chance of rain 50 percent.
.SUNDAY...Partly sunny. Cooler with highs in the upper 60s.
Northeast winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Cooler with lows in the lower 40s. North winds around 5 mph in
the evening, becoming light and variable.
.MONDAY...Sunny. Highs in the mid 70s. East winds around 5 mph,
becoming northwest in the afternoon.
.MONDAY NIGHT...Clear. Lows in the upper 40s. Southwest winds
around 5 mph.
.TUESDAY...Sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Mostly clear with a chance of showers and
thunderstorms in the evening, then partly cloudy with a slight
chance of showers after midnight. Lows in the mid 50s. Chance of
rain 40 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the upper 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the upper 70s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
upper 80s. Chance of rain 20 percent.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. 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.

$$

ILZ102-MOZ065-101000-
Monroe IL-Jefferson MO-
908 PM CDT Sat May 9 2026

.TONIGHT...Partly cloudy this evening, then becoming mostly
cloudy. A chance of showers and thunderstorms. Lows in the mid
50s. Southwest winds around 5 mph, becoming north after midnight.
Chance of rain 50 percent.
.SUNDAY...Partly sunny. Cooler with highs in the upper 60s. North
winds 5 to 10 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Cooler with lows in the mid 40s. North winds around 5 mph in the
evening, becoming light and variable.
.MONDAY...Sunny. Highs in the mid 70s. Light and variable winds,
becoming north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the upper 40s. East winds around
5 mph, becoming south after midnight.
.TUESDAY...Sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Mostly clear with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the upper
50s. Chance of rain 40 percent.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs in the upper 70s.
Lows in the upper 40s.
.THURSDAY...Sunny. Highs in the upper 70s.
.THURSDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the mid
50s. Chance of rain 20 percent.
.FRIDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. Chance of
rain 20 percent.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the lower
60s. Highs in the lower 90s.

$$