Zone Forecast Product
Issued by NWS Chicago, IL

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132
FPUS53 KLOT 200120
ZFPLOT

Zone Forecast Product
National Weather Service Chicago/Romeoville, IL
820 PM CDT Tue Aug 19 2025

ILZ104-200915-
Central Cook-
Including the cities of Chicago, Cicero, Oak Lawn, Oak Park,
and La Grange
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. A chance of sprinkles in the
late evening and overnight. Lows in the upper 60s. North winds
5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s
inland, but only in the mid 70s near the lake. Northeast winds
10 to 15 mph. Gusts up to 25 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs around 80 inland, but only in the
mid 70s near the lake. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds 5 to 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s inland, but only in
the upper 70s near the lake.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the lower 60s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the upper 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ103-200915-
Northern Cook-
Including the cities of Evanston, Des Plaines, Schaumburg,
Palatine, and Northbrook
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. A chance of sprinkles
in the late evening and overnight. Patchy fog late. Lows in the
upper 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the upper 70s inland, but only in the mid 70s near the
lake. Northeast winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Sunny. Highs around 80 inland, but only in the mid
70s near the lake. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the mid 60s. Northeast winds
5 to 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s inland, but only in
the upper 70s near the lake.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ105-200915-
Southern Cook-
Including the cities of Calumet City, Oak Forest, Lemont,
Orland Park, and Park Forest
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. A chance of sprinkles in the
late evening and overnight. Lows in the upper 60s. North winds
5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s.
Northeast winds 5 to 10 mph, increasing to 10 to 15 mph in the
afternoon.
.WEDNESDAY NIGHT...Decreasing cloudiness. Lows in the mid 60s.
Northeast winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs around 80. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds 5 to 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ006-200915-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. A chance of sprinkles
in the late evening and overnight. Patchy fog late. Lows in the
mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s.
Northeast winds 5 to 10 mph, increasing to 10 to 15 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Sunny. Highs in the upper 70s. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Clear. Lows in the lower 60s. North winds
around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs around 70.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ005-200915-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Increasing cloudiness. A chance of sprinkles
in the late evening and overnight. Patchy fog after midnight.
Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the upper 70s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Sunny. Highs in the upper 70s. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. Northeast winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows around 50.
.MONDAY...Mostly sunny. Highs in the upper 60s.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ012-200915-
Kane-
Including the cities of Aurora and Elgin
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. Patchy fog after
midnight. Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs around 80. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Sunny. Highs in the lower 80s. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Clear. Lows around 60. Northeast winds around
5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ013-200915-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. A chance of sprinkles
in the late evening and overnight. Patchy fog late. Lows in the
mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the upper 70s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs around 80. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ020-200915-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy late in the evening, then
becoming partly cloudy. Patchy fog after midnight. Lows in the
mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the lower 60s. Northeast winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs around 80.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ106-200915-
Northern Will-
Including the cities of Joliet, Bolingbrook, Plainfield,
and Mokena
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. A
chance of sprinkles late. Lows in the mid 60s. North winds around
5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs around 80. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear through the early overnight, then
becoming partly cloudy. Lows in the lower 60s. Northeast winds
5 to 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ107-200915-
Southern Will-
Including the cities of Channahon, Manhattan, and Wilmington
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. A
chance of sprinkles late. Lows in the mid 60s. North winds around
5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear through the early overnight, then
becoming partly cloudy. Lows in the lower 60s. Northeast winds
5 to 10 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ108-200915-
Eastern Will-
Including the cities of Crete, Peotone, and Beecher
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. A chance of sprinkles late.
Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s. North
winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs around 80. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

INZ001-200915-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. A chance of sprinkles in the
late evening and overnight. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s. North
winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the upper 70s inland, but only
in the mid 70s near the lake. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the lower 60s. Northeast winds
5 to 10 mph, becoming east after midnight.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

INZ002-200915-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. A chance of sprinkles in the
late evening and overnight. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. A
chance of sprinkles in the morning. Highs in the upper 70s. North
winds 10 to 15 mph.
.WEDNESDAY NIGHT...Clear. Lows around 60. Northeast winds 5 to
10 mph.
.THURSDAY...Mostly sunny. Highs in the upper 70s inland, but only
in the mid 70s near the lake. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the lower 60s. Northeast winds
5 to 10 mph, becoming east after midnight.
.FRIDAY...Mostly sunny. Highs in the lower 80s inland, but only
in the upper 70s near the lake.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Highs around 80. Chance of
precipitation 20 percent.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ003-200915-
Winnebago-
Including the city of Rockford
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Increasing cloudiness. Patchy fog after
midnight. Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the upper 70s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the upper 70s. Northeast winds
around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
precipitation 30 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs around 70.
.SUNDAY NIGHT...Clear. Lows in the upper 40s.
.MONDAY...Mostly sunny. Highs in the upper 60s.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ004-200915-
Boone-
Including the city of Belvidere
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Increasing cloudiness. Patchy fog after
midnight. A chance of sprinkles late. Lows in the mid 60s. North
winds around 5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Patchy fog through mid morning. A chance of
sprinkles in the morning. Highs in the upper 70s. Northeast winds
5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds around 5 mph.
.THURSDAY...Sunny. Highs in the upper 70s. Northeast winds around
5 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. East winds around
5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows in the lower 60s. Chance of precipitation
20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs around 70.
.SUNDAY NIGHT...Clear. Lows in the upper 40s.
.MONDAY...Mostly sunny. Highs in the upper 60s.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ008-200915-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly clear late in the evening, then
becoming partly cloudy. Patchy fog after midnight. Lows in the
mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly clear. Lows in the upper 50s. Northeast winds
5 to 10 mph.
.THURSDAY...Mostly sunny. Highs around 80. Northeast winds 5 to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. East winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows around 50.
.MONDAY...Mostly sunny. Highs around 70.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ011-200915-
De Kalb-
Including the cities of DeKalb and Sycamore
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. Patchy fog after
midnight. Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Patchy fog through mid morning. A chance of
sprinkles in the morning. Highs around 80. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 60. Northeast winds
5 to 10 mph.
.THURSDAY...Sunny. Highs around 80. Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. Northeast winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows around 50.
.MONDAY...Mostly sunny. Highs around 70.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ010-200915-
Lee-
Including the city of Dixon
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Decreasing cloudiness. Patchy fog after
midnight. Lows in the mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. Northeast winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the lower 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows around 50.
.MONDAY...Mostly sunny. Highs around 70.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ019-200915-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy late in the evening, then
becoming partly cloudy. Patchy fog after midnight. Lows in the
mid 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. A chance of sprinkles in
the morning. Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows around 60. Northeast winds around
5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms after midnight. Lows in the mid 60s. Chance of
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs around 80.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ021-200915-
Grundy-
Including the cities of Morris, Coal City, and Minooka
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy late in the evening, then
becoming partly cloudy. Patchy fog after midnight. Lows in the
mid 60s. North winds around 5 mph late in the evening, becoming
light and variable.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the lower 80s. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ032-200915-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy in the late evening and early
morning, then becoming partly cloudy. Patchy fog after midnight.
Lows in the mid 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Patchy fog through mid morning. A chance of
sprinkles in the morning. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Northeast winds
around 5 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ023-200915-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. A
chance of sprinkles late. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs around 80. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear through the early overnight, then
becoming partly cloudy. Lows around 60. Northeast winds 5 to
10 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ039-200915-
Ford-
Including the cities of Paxton and Gibson City
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows
in the mid 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then clearing.
Patchy fog through mid morning. Highs in the lower 80s. North
winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear through the early overnight, then
becoming partly cloudy. Lows around 60. Northeast winds 5 to
10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ033-200915-
Iroquois-
Including the cities of Watseka and Gilman
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. A
chance of sprinkles late. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the lower 80s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear through the early overnight, then
becoming partly cloudy. Lows around 60. Northeast winds around
5 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ010-200915-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. A
chance of sprinkles late. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. A chance of sprinkles in the morning.
Highs in the upper 70s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 60. Northeast winds
5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows in the upper 40s.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ011-200915-
Jasper-
Including the cities of Rensselaer and DeMotte
820 PM CDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog late. Lows in the
mid 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then clearing. Patchy
fog through mid morning. Highs in the upper 70s. North winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 60. Northeast winds
5 to 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 80s. Northeast winds
5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. Northeast winds
around 5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the lower 70s.

$$

INZ019-200915-
Benton-
Including the cities of Fowler and Oxford
920 PM EDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly cloudy. Patchy fog after midnight. Lows
in the mid 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Patchy fog through mid morning. Highs around 80. North
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast
winds 5 to 10 mph.
.THURSDAY...Decreasing cloudiness. Highs in the lower 80s.
Northeast winds 5 to 10 mph.
.THURSDAY NIGHT...Clear. Lows around 60. Northeast winds around
5 mph in the evening, becoming light and variable.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Partly cloudy. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
.MONDAY NIGHT...Mostly clear. Lows around 50.
.TUESDAY...Mostly sunny. Highs in the mid 70s.

$$