731
FPUS53 KLSX 172313
ZFPLSX

Zone Forecasts
National Weather Service Saint Louis MO
612 PM CDT Mon Aug 17 2026

ILZ100-101-MOZ061-063-064-180700-
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
612 PM CDT Mon Aug 17 2026

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

$$

MOZ042-049-050-180700-
Audrain MO-Osage MO-Callaway MO-
Including the cities of Mexico and Fulton
612 PM CDT Mon Aug 17 2026

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

$$

MOZ041-047-048-180700-
Boone MO-Moniteau MO-Cole MO-
Including the cities of Columbia and Jefferson City
612 PM CDT Mon Aug 17 2026

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

$$

ILZ095>097-MOZ018-019-026-027-034>036-180700-
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
612 PM CDT Mon Aug 17 2026

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

$$

ILZ069-070-074-180700-
Clinton IL-Marion IL-Washington IL-
Including the cities of Centralia and Salem
612 PM CDT Mon Aug 17 2026

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

$$

MOZ074-084-085-099-180700-
Saint Francois MO-Iron MO-Madison MO-Reynolds MO-
Including the city of Farmington
612 PM CDT Mon Aug 17 2026

.TONIGHT...Partly cloudy. Lows in the lower 60s. North winds
around 5 mph this evening, becoming light and variable.
.TUESDAY...Patchy fog in the morning. Sunny. Highs around 90.
South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. A chance of showers and
thunderstorms after midnight. Lows in the upper 60s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.WEDNESDAY...Showers and thunderstorms likely, mainly in the
morning. Highs in the upper 80s. South winds around 5 mph. Gusts
up to 20 mph in the morning. Chance of rain 70 percent. Heat
index values up to 100 in the afternoon.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and
thunderstorms in the evening, then showers and thunderstorms
likely after midnight. Humid with lows in the upper 60s.
Northeast winds around 5 mph in the evening, becoming light and
variable. Chance of rain 70 percent.
.THURSDAY...Mostly cloudy in the morning, then becoming mostly
sunny. A chance of showers and thunderstorms. Highs in the lower
80s. Chance of rain 50 percent.
.THURSDAY 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.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the mid 80s.
Lows in the mid 60s.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Highs in the mid 80s. Chance of rain
20 percent.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the lower 60s.
Highs in the mid 80s.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. A 20 percent chance of
showers. Lows in the lower 60s. Highs in the mid 80s.

$$

MOZ051-052-060-180700-
Montgomery MO-Lincoln MO-Warren MO-
612 PM CDT Mon Aug 17 2026

.TONIGHT...Mostly cloudy this evening, then clearing. Lows in the
lower 60s. North winds around 5 mph this evening, becoming light
and variable.
.TUESDAY...Sunny in the morning, then becoming partly sunny.
Highs in the mid 80s. Southwest winds around 5 mph.
.TUESDAY NIGHT...Mostly clear in the evening, then mostly cloudy
with a chance of showers and thunderstorms after midnight. Lows
in the upper 60s. Southeast winds around 5 mph, becoming
northeast after midnight. Chance of rain 50 percent.
.WEDNESDAY...Mostly cloudy. A chance of showers and
thunderstorms, mainly in the morning. Humid with highs in the
lower 80s. Northeast winds around 5 mph. Chance of rain
40 percent.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the mid 60s. Northeast winds around 5 mph.
Chance of rain 50 percent.
.THURSDAY...Mostly sunny. A slight chance of showers and
thunderstorms in the morning. Highs in the lower 80s. Chance of
rain 20 percent.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the lower 60s.
Highs in the lower 80s.
.FRIDAY NIGHT...Mostly clear. A slight chance of showers after
midnight. Lows in the mid 60s. Chance of rain 20 percent.
.SATURDAY...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.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SUNDAY...Mostly sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the lower 60s. Chance of rain 20 percent.
.MONDAY...Partly sunny. A slight chance of showers in the
morning. Highs in the lower 80s. Chance of rain 20 percent.

$$

ILZ058-059-098-099-180700-
Greene IL-Macoupin IL-Calhoun IL-Jersey IL-
612 PM CDT Mon Aug 17 2026

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

$$

ILZ060-064-065-180700-
Montgomery IL-Bond IL-Fayette IL-
Including the cities of Litchfield and Vandalia
612 PM CDT Mon Aug 17 2026

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

$$

ILZ079-MOZ075-180700-
Randolph IL-Sainte Genevieve MO-
Including the cities of Chester and Sparta
612 PM CDT Mon Aug 17 2026

.TONIGHT...Partly cloudy. Patchy fog after midnight. Lows in the
lower 60s. North winds around 5 mph this evening, becoming light
and variable.
.TUESDAY...Areas of fog in the morning. Sunny. Highs in the upper
80s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. A chance of showers and
thunderstorms after midnight. Lows in the upper 60s. Southeast
winds around 5 mph. Chance of rain 50 percent.
.WEDNESDAY...Showers and thunderstorms likely in the morning,
then partly sunny with a slight chance of showers and
thunderstorms in the afternoon. Humid with highs in the mid 80s.
South winds 5 to 10 mph. Chance of rain 70 percent.
.WEDNESDAY NIGHT...Showers and thunderstorms. Humid with lows in
the mid 60s. North winds around 5 mph. Chance of rain 80 percent.
.THURSDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the lower 80s. Chance of rain
40 percent.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows in the mid 60s.
Highs in the lower 80s.
.FRIDAY NIGHT...Mostly clear. A slight chance of showers 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 mid 80s. Chance of rain
20 percent.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the lower 60s.
Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.MONDAY...Partly sunny. A slight chance of showers in the
morning. Highs in the mid 80s. Chance of rain 20 percent.

$$

MOZ059-062-072-073-180700-
Gasconade MO-Franklin MO-Crawford MO-Washington MO-
Including the cities of Washington, Union, and Sullivan
612 PM CDT Mon Aug 17 2026

.TONIGHT...Partly cloudy. Lows in the lower 60s. North winds
around 5 mph, becoming southeast after midnight.
.TUESDAY...Sunny. Highs around 90. Southwest winds around 5 mph.
.TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy
with thunderstorms likely with a chance of showers after
midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph.
Chance of rain 70 percent.
.WEDNESDAY...Mostly cloudy with thunderstorms likely with a
chance of showers in the morning, then partly sunny with a slight
chance of showers and thunderstorms in the afternoon. Humid with
highs in the mid 80s. South winds 5 to 10 mph, becoming northeast
in the afternoon. Chance of rain 60 percent.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and
thunderstorms in the evening, then showers and thunderstorms
likely after midnight. Lows in the mid 60s. Northeast winds
around 5 mph in the evening, becoming light and variable. Chance
of rain 70 percent.
.THURSDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the lower 80s. Chance of rain
40 percent.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Highs in the mid 80s. Chance of rain
20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SUNDAY THROUGH MONDAY...Partly cloudy with a 20 percent chance
of showers. Highs in the mid 80s. Lows in the lower 60s.

$$

ILZ102-MOZ065-180700-
Monroe IL-Jefferson MO-
612 PM CDT Mon Aug 17 2026

.TONIGHT...Partly cloudy. Lows in the lower 60s. North winds
around 5 mph this evening, becoming light and variable.
.TUESDAY...Patchy fog in the morning. Sunny. Highs in the upper
80s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a chance of showers and thunderstorms after midnight. Lows
in the upper 60s. Southeast winds around 5 mph. Chance of rain
50 percent.
.WEDNESDAY...Mostly cloudy with showers and thunderstorms likely
in the morning, then partly sunny with a slight chance of showers
and thunderstorms in the afternoon. Humid with highs in the mid
80s. South winds 5 to 10 mph, becoming east in the afternoon.
Chance of rain 60 percent.
.WEDNESDAY NIGHT...Showers and thunderstorms likely. Lows in the
mid 60s. Northeast winds around 5 mph. Chance of rain 70 percent.
.THURSDAY...Partly sunny. A chance of showers and thunderstorms,
mainly in the morning. Highs in the lower 80s. Chance of rain
40 percent.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows in the
mid 60s. Highs in the mid 80s.
.SATURDAY...Sunny. A slight chance of showers and thunderstorms
in the afternoon. Highs in the mid 80s. Chance of rain
20 percent.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SUNDAY...Mostly sunny. Highs in the lower 80s.
.SUNDAY NIGHT...Partly cloudy. A slight chance of showers after
midnight. Lows in the lower 60s. Chance of rain 20 percent.
.MONDAY...Partly sunny. A slight chance of showers in the
morning. Highs in the mid 80s. Chance of rain 20 percent.

$$