726
FPUS53 KLSX 210223
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
923 PM CDT Thu Aug 20 2026

ILZ100-101-MOZ061-063-064-211000-
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
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
East winds around 5 mph, becoming west in the afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the upper 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. Northwest
winds 5 to 10 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds 5 to 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.MONDAY...Mostly sunny. A slight chance of showers in the
afternoon. Highs in the lower 80s. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. A 20 percent chance
of showers. Highs in the mid 80s. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers in
the evening. Lows in the mid 60s. Chance of rain 20 percent.
.THURSDAY...Mostly sunny. Highs in the mid 80s.

$$

MOZ042-049-050-211000-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Lows in the lower 60s. East winds around
5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
South winds around 5 mph, becoming west in the afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the upper 60s. West winds around 5 mph.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 80s. North winds
5 to 10 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph.
.SUNDAY...Sunny. Highs around 80.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of
showers. Lows in the lower 60s.
.MONDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. A slight chance of showers and thunderstorms. Lows
in the mid 60s. Chance of rain 20 percent.
.TUESDAY...Mostly sunny with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Highs in the mid 80s.
Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

MOZ041-047-048-211000-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Lows in the mid 60s. East winds around
5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the upper
80s. South winds around 5 mph, becoming west in the afternoon.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the upper 60s. West winds around 5 mph. Chance
of rain 20 percent.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. North winds
around 5 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds around 5 mph.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of
showers. Lows in the lower 60s.
.MONDAY...Partly sunny with a slight chance of thunderstorms. A
chance of showers, mainly in the morning. Highs in the lower 80s.
Chance of rain 30 percent.
.MONDAY NIGHT...Mostly clear. Lows in the mid 60s.
.TUESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the upper 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ095>097-MOZ018-019-026-027-034>036-211000-
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
923 PM CDT Thu Aug 20 2026

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

$$

ILZ069-070-074-211000-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
Light and variable winds, becoming northwest around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 60. Highs
in the lower 80s.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening, then a chance of showers after midnight. Lows in the mid
60s. Chance of rain 30 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

MOZ074-084-085-099-211000-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
mid 60s. Northeast winds around 5 mph this evening, becoming
light and variable.
.FRIDAY...Areas of fog in the morning. Sunny. Highs in the upper
80s. Light and variable winds, becoming northeast around 5 mph in
the afternoon.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. Southeast
winds around 5 mph in the evening, becoming light and variable.
.SATURDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Northwest winds around 5 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A 20 percent chance of showers. Lows around 60.
.MONDAY...Mostly sunny. A chance of showers in the morning, then
a slight chance of showers and thunderstorms in the afternoon.
Highs in the lower 80s. Chance of rain 30 percent.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the lower 60s. Chance of rain 20 percent.
.TUESDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the mid 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

MOZ051-052-060-211000-
Montgomery MO-Lincoln MO-Warren MO-
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph this evening, becoming
light and variable.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
South winds around 5 mph, becoming west around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s. West winds around 5 mph.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 80s. North winds
around 5 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs around 80.
.SUNDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows around 60. Chance of rain 20 percent.
.MONDAY...Partly sunny with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Highs in the upper 70s.
Chance of rain 20 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the mid 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ058-059-098-099-211000-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows around
60. Northeast winds around 5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
Southeast winds around 5 mph, becoming west around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Lows in the mid
60s. Southwest winds around 5 mph. Chance of rain 20 percent.
.SATURDAY...Mostly sunny. Highs in the lower 80s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. North winds
around 5 mph.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows in the upper 50s.
Highs around 80.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
rain 20 percent.
.TUESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a chance of showers in the
evening, then mostly cloudy with a slight chance of showers after
midnight. Lows in the mid 60s. Chance of rain 30 percent.
.WEDNESDAY...Mostly sunny. A slight chance of showers in the
morning. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ060-064-065-211000-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the lower
80s. Light and variable winds, becoming west around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers and thunderstorms after midnight.
Lows in the mid 60s. Southwest winds around 5 mph. Chance of rain
20 percent.
.SATURDAY...Mostly sunny. Highs in the lower 80s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Clear. Lows in the lower 60s. North winds 5 to
10 mph.
.SUNDAY...Sunny. Highs around 80.
.SUNDAY NIGHT THROUGH TUESDAY...Partly cloudy. Lows around 60.
Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. A chance of showers, mainly in
the evening. Lows in the mid 60s. Chance of rain 30 percent.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ079-MOZ075-211000-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
mid 60s. North winds around 5 mph.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
Light and variable winds, becoming north around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. Southeast
winds around 5 mph, becoming southwest after midnight.
.SATURDAY...Mostly sunny. Highs in the mid 80s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. A 20 percent chance of
showers. Lows in the lower 60s. Highs in the lower 80s.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy with a
20 percent chance of showers. Lows in the mid 60s. Highs in the
mid 80s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.

$$

MOZ059-062-072-073-211000-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph this evening, becoming
light and variable.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
South winds around 5 mph, becoming northwest in the afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Northwest winds around 5 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A 20 percent chance of showers. Lows around 60.
.MONDAY...Partly sunny with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Highs in the lower 80s.
Chance of rain 20 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the mid 60s.
.WEDNESDAY...Mostly sunny with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Highs in the mid
80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers in
the evening. Lows in the mid 60s. Chance of rain 20 percent.
.THURSDAY...Mostly sunny. Highs in the mid 80s.

$$

ILZ102-MOZ065-211000-
Monroe IL-Jefferson MO-
923 PM CDT Thu Aug 20 2026

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the
lower 60s. Northeast winds around 5 mph this evening, becoming
light and variable.
.FRIDAY...Patchy fog in the morning. Sunny. Highs in the mid 80s.
Light and variable winds, becoming northwest around 5 mph in the
afternoon.
.FRIDAY NIGHT...Mostly clear in the evening, then becoming partly
cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. Northwest
winds around 5 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with a slight chance of showers after midnight. Lows in the lower
60s. Chance of rain 20 percent.
.MONDAY...Partly sunny with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Highs around 80. Chance
of rain 20 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Lows in the lower 60s. Highs in the
mid 80s. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A 20 percent chance of showers. Lows in the mid
60s.
.WEDNESDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 80s. Chance of
rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows in the mid 60s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.

$$