158
FPUS53 KLSX 211538
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
1037 AM CDT Fri Aug 21 2026

ILZ100-101-MOZ061-063-064-212300-
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
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds, becoming west around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 60s. Southwest winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
5 to 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. Highs around 80. Chance of rain
40 percent.
.MONDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. A chance of showers and thunderstorms. Lows in the
mid 60s. Chance of rain 40 percent.
.TUESDAY...Mostly sunny. Highs in the mid 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the upper 60s. Chance of
rain 20 percent.
.WEDNESDAY...Partly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly clear after
midnight. Lows in the mid 60s. Chance of rain 20 percent.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

MOZ042-049-050-212300-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Southwest winds
around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 60s. Northwest winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 80s. North winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs around 80. Northeast winds around
5 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of thunderstorms. A chance
of showers. Highs in the upper 70s. Chance of rain 40 percent.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
40 percent.
.TUESDAY...Mostly sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.WEDNESDAY...Partly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid
60s. Highs in the mid 80s.

$$

MOZ041-047-048-212300-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the upper 80s. Southwest winds
around 5 mph, becoming west.
.TONIGHT...Partly cloudy in the evening, then becoming mostly
clear. Lows in the upper 60s. Northwest winds around 5 mph.
.SATURDAY...Sunny. Highs in the upper 80s. North winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the lower 80s. Light and
variable winds, becoming east around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.MONDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the lower 80s. Chance of rain
40 percent.
.MONDAY NIGHT...Partly cloudy in the evening, then mostly clear
with a slight chance of showers and thunderstorms after midnight.
Lows in the mid 60s. Chance of rain 20 percent.
.TUESDAY...Mostly sunny. Highs in the mid 80s.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the upper 60s. Chance of rain
20 percent.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ095>097-MOZ018-019-026-027-034>036-212300-
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
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Southwest winds
around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 60s. Northwest winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds 5 to 10 mph.
.SUNDAY...Mostly sunny. Highs around 80. North winds around
5 mph.
.SUNDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Chance of rain 40 percent.
.MONDAY NIGHT...Mostly cloudy in the evening, then partly cloudy
with a slight chance of showers and thunderstorms after midnight.
Lows in the mid 60s. Chance of rain 20 percent.
.TUESDAY...Mostly sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.WEDNESDAY...Partly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the mid 80s. Chance of
rain 20 percent.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid
60s. Highs in the mid 80s.

$$

ILZ069-070-074-212300-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds, becoming southwest around 5 mph after midnight.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 80s. Chance of
rain 20 percent.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy with a slight
chance of showers and thunderstorms after midnight. Lows in the
mid 60s. Chance of rain 40 percent.
.TUESDAY...Mostly sunny. Highs in the mid 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.WEDNESDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. Chance of rain
20 percent.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

MOZ074-084-085-099-212300-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the upper 80s. Light and
variable winds.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds.
.SATURDAY...Sunny. Highs in the upper 80s. Northwest winds around
5 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. Light and variable
winds, becoming northeast around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Chance of rain 40 percent.
.MONDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 60s. Chance of rain 40 percent.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy with a slight
chance of showers and thunderstorms. Highs in the mid 80s. Lows
in the mid 60s. Chance of rain 20 percent.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

MOZ051-052-060-212300-
Montgomery MO-Lincoln MO-Warren MO-
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Southwest winds
around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds, becoming northwest around 5 mph after midnight.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light and variable.
.SUNDAY...Mostly sunny. Highs in the lower 80s. Light and
variable winds, becoming northeast around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Chance of rain 40 percent.
.MONDAY 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 mid 60s.
Chance of rain 40 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs in the lower
80s. Lows in the mid 60s.
.WEDNESDAY...Partly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly clear. Lows in the mid 60s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.

$$

ILZ058-059-098-099-212300-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Southwest winds
around 5 mph.
.TONIGHT...Mostly clear. Lows in the upper 60s. Southwest winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds 5 to 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.MONDAY...Partly sunny. A slight chance of showers and
thunderstorms in the afternoon. Highs around 80. Chance of rain
20 percent.
.MONDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the lower 60s. Chance of rain 20 percent.
.TUESDAY...Mostly sunny. Highs in the mid 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.WEDNESDAY...Partly 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 in the evening, then clearing.
Lows in the mid 60s.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

ILZ060-064-065-212300-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds, becoming west around 5 mph.
.TONIGHT...Mostly clear in the evening, then partly cloudy with a
slight chance of showers and thunderstorms after midnight. Lows
in the upper 60s. Southwest winds around 5 mph. Chance of rain
20 percent.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds 5 to 10 mph.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.MONDAY AND MONDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the upper 70s. Lows in the
lower 60s. Chance of rain 20 percent.
.TUESDAY...Mostly sunny. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of rain
20 percent.
.WEDNESDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. Chance of rain
20 percent.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

ILZ079-MOZ075-212300-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds, becoming southwest around 5 mph after midnight.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. Northwest
winds around 5 mph.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 80. Chance of rain 30 percent.
.MONDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. A chance of showers and thunderstorms. Lows in the
mid 60s. Chance of rain 40 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the lower 80s. Lows in the
mid 60s. Chance of rain 20 percent.
.WEDNESDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Lows in the mid 60s. Chance of rain
20 percent.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

MOZ059-062-072-073-212300-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds.
.SATURDAY...Sunny. Highs in the mid 80s. Northwest winds around
5 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. Light and variable
winds, becoming northeast around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Chance of rain 40 percent.
.MONDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Chance of rain 40 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the lower 80s. Lows in the
mid 60s. Chance of rain 20 percent.
.WEDNESDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows in the mid 60s.
.THURSDAY...Sunny. Highs in the mid 80s.

$$

ILZ102-MOZ065-212300-
Monroe IL-Jefferson MO-
1037 AM CDT Fri Aug 21 2026

.THIS AFTERNOON...Sunny. Highs in the mid 80s. Light and variable
winds.
.TONIGHT...Mostly clear. Lows in the upper 60s. Light and
variable winds, becoming southwest around 5 mph after midnight.
.SATURDAY...Sunny. Highs in the upper 80s. Northwest winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds
around 5 mph in the evening, becoming light and variable.
.SUNDAY...Sunny. Highs in the lower 80s. North winds around
5 mph.
.SUNDAY NIGHT...Mostly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny with a chance of thunderstorms. A chance
of showers. Highs around 80. Chance of rain 40 percent.
.MONDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. A chance of showers and thunderstorms. Lows in the
mid 60s. Chance of rain 40 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Highs in the lower 80s. Lows in the
mid 60s. Chance of rain 20 percent.
.WEDNESDAY...Partly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.THURSDAY...Sunny. Highs in the mid 80s.

$$