577
FPUS53 KLOT 181449
ZFPLOT

Zone Forecast Product
National Weather Service Chicago/Romeoville, IL
949 AM CDT Mon Aug 18 2025

ILZ104-182215-
Central Cook-
Including the cities of Chicago, Cicero, Oak Lawn, Oak Park,
and La Grange
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Increasing cloudiness. Scattered showers and
thunderstorms late morning through mid afternoon, then numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s inland, but only in the mid 80s near the lake.
Southeast winds around 10 mph. Chance of precipitation
60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms through mid
morning, then a slight chance of showers and thunderstorms in the
late morning and afternoon. Highs in the mid 80s. West winds 5 to
10 mph, becoming north in the afternoon. Chance of precipitation
40 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows around 70. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the upper 70s. North winds 10 to 15 mph. Gusts
up to 25 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 60s.
.THURSDAY...Mostly sunny. Highs around 80 inland, but only in the
mid 70s near the lake.
.THURSDAY NIGHT...Clear. Lows in the mid 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ103-182215-
Northern Cook-
Including the cities of Evanston, Des Plaines, Schaumburg,
Palatine, and Northbrook
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. Scattered showers and
thunderstorms late morning through mid afternoon, then numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s inland, but only in the lower 80s near the lake.
Southeast winds 5 to 10 mph. Chance of precipitation 60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A slight chance of showers in the morning. A
slight chance of thunderstorms. A chance of showers in the
afternoon. Highs in the mid 80s. West winds 5 to 10 mph, becoming
north in the afternoon. Chance of precipitation 30 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s.
.THURSDAY...Mostly sunny. Highs around 80 inland, but only in the
mid 70s near the lake.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ105-182215-
Southern Cook-
Including the cities of Calumet City, Oak Forest, Lemont,
Orland Park, and Park Forest
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Decreasing cloudiness. Scattered showers and
thunderstorms late morning through mid afternoon, then numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s. South winds 5 to 10 mph. Chance of precipitation
60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms, mainly in
the morning. Highs in the upper 80s. Southwest winds 5 to 10 mph,
becoming northwest in the afternoon. Chance of precipitation
50 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows around 70. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Mostly clear. Lows around 60.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ006-182215-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the mid 80s inland,
but only in the lower 80s near the lake. Southeast winds 10 to
15 mph, diminishing to 5 to 10 mph in the afternoon. Chance of
precipitation 60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A slight chance of showers in the morning. A
slight chance of thunderstorms. A chance of showers in the
afternoon. Highs in the lower 80s. West winds 5 to 10 mph,
becoming north in the afternoon. Chance of precipitation
30 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the mid 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the mid 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the upper 70s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs around 80.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ005-182215-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the mid 80s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the upper 60s. South
winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A slight chance of showers in the morning. A
slight chance of thunderstorms. A chance of showers in the
afternoon. Highs in the lower 80s. West winds 5 to 10 mph,
becoming northwest in the afternoon. Chance of precipitation
30 percent.
.TUESDAY NIGHT...Partly cloudy through the early overnight, then
becoming mostly cloudy. Lows in the mid 60s. North winds around
5 mph.
.WEDNESDAY...Decreasing cloudiness. Highs in the upper 70s. North
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 60.
.THURSDAY...Mostly sunny. Highs around 80.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ012-182215-
Kane-
Including the cities of Aurora and Elgin
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the upper 80s.
South winds 5 to 10 mph. Chance of precipitation 60 percent. Heat
index values up to 100 in the afternoon.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows around 70. South winds
around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A slight chance of showers and thunderstorms.
Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest
in the afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy through the early overnight, then
becoming mostly cloudy. Lows in the upper 60s. North winds 5 to
10 mph.
.WEDNESDAY...Partly cloudy. Highs in the upper 70s. North winds
10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ013-182215-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the upper 80s.
South winds 5 to 10 mph. Chance of precipitation 60 percent.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms through mid
morning, then a slight chance of showers and thunderstorms in the
late morning and afternoon. Highs in the mid 80s. West winds 5 to
10 mph, becoming northwest in the afternoon. Chance of
precipitation 30 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds 5 to
10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ020-182215-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the upper 80s.
Southeast winds 5 to 10 mph. Chance of precipitation 60 percent.
Heat index values up to 102 in the afternoon.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms through mid
morning, then a slight chance of showers and thunderstorms in the
late morning and afternoon. Highs in the mid 80s. West winds 5 to
10 mph, becoming northwest in the afternoon. Chance of
precipitation 30 percent.
.TUESDAY NIGHT...Partly cloudy through the early overnight, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Partly cloudy. Highs around 80. North winds around
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ106-182215-
Northern Will-
Including the cities of Joliet, Bolingbrook, Plainfield,
and Mokena
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Increasing cloudiness. A slight chance of
showers and thunderstorms late in the morning, then scattered
showers and thunderstorms early to mid afternoon. Numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s. South winds 5 to 10 mph. Chance of precipitation
60 percent. Heat index values up to 101.
.TONIGHT...Mostly cloudy. Numerous showers and thunderstorms
early in the evening, then a chance of showers and thunderstorms
in the late evening and overnight. Lows in the lower 70s. South
winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms through mid
morning, then a slight chance of showers and thunderstorms in the
late morning and afternoon. Highs in the mid 80s. Southwest winds
5 to 10 mph, becoming northwest in the afternoon. Chance of
precipitation 40 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Partly cloudy. Highs in the upper 70s. North winds
10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ107-182215-
Southern Will-
Including the cities of Channahon, Manhattan, and Wilmington
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Increasing cloudiness. A slight chance of
showers and thunderstorms late in the morning, then scattered
showers and thunderstorms early to mid afternoon. Numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s. South winds 5 to 10 mph. Chance of precipitation
60 percent. Heat index values up to 101.
.TONIGHT...Showers and thunderstorms likely. Lows in the lower
70s. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms, mainly in
the morning. Highs in the upper 80s. Southwest winds 5 to 10 mph,
becoming northwest in the afternoon. Chance of precipitation
40 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Partly cloudy. Highs around 80. North winds 5 to
10 mph, increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ108-182215-
Eastern Will-
Including the cities of Crete, Peotone, and Beecher
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy late in the morning, then becoming
partly cloudy. A slight chance of showers and thunderstorms late
in the morning, then scattered showers and thunderstorms early to
mid afternoon. Numerous showers and thunderstorms late in the
afternoon. Highs in the upper 80s. Southeast winds around 10 mph,
becoming south in the afternoon. Chance of precipitation
60 percent.
.TONIGHT...Numerous showers and thunderstorms early in the
evening, then a chance of showers and thunderstorms late in the
evening. Showers and thunderstorms likely after midnight. Lows in
the lower 70s. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the mid 80s. Southwest winds 5 to 10 mph, becoming northwest in
the afternoon. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs around 80.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ001-182215-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy late in the morning, then becoming
partly cloudy. A chance of showers and thunderstorms late in the
morning, then isolated showers and thunderstorms early to mid
afternoon. Scattered showers and thunderstorms late in the
afternoon. Highs in the upper 80s. Southeast winds 5 to 10 mph.
Chance of precipitation 50 percent.
.TONIGHT...Numerous showers and thunderstorms early in the
evening, then a chance of showers and thunderstorms late in the
evening. Showers and thunderstorms likely after midnight. Lows in
the lower 70s. South winds 5 to 10 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the mid 80s. Southwest winds 5 to 10 mph, becoming northwest in
the afternoon. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the upper 70s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ002-182215-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy late in the morning, then becoming
partly cloudy. A chance of showers and thunderstorms late in the
morning, then isolated showers and thunderstorms early to mid
afternoon. Scattered showers and thunderstorms late in the
afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph.
Chance of precipitation 50 percent.
.TONIGHT...Numerous showers and thunderstorms early in the
evening, then a chance of showers and thunderstorms in the late
evening and early morning. Showers and thunderstorms likely late.
Lows around 70. South winds 5 to 10 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the mid 80s inland, but only in the lower 80s near the lake.
Southwest winds 5 to 10 mph, becoming northwest in the afternoon.
Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 60s. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. 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.
.THURSDAY...Mostly sunny. Highs around 80 inland, but only in the
mid 70s near the lake.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.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 mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s inland, but only
in the upper 70s near the lake.
.SATURDAY NIGHT...Clear. Lows around 60.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ003-182215-
Winnebago-
Including the city of Rockford
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then numerous showers and
thunderstorms in the afternoon. Highs in the upper 80s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 70. Southwest winds around 5 mph. Chance of
precipitation 50 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A slight chance of showers and thunderstorms. Highs in
the mid 80s. West winds 5 to 10 mph, becoming northwest in the
afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
around 5 mph.
.WEDNESDAY...Partly cloudy through mid afternoon, then becoming
mostly sunny. Highs in the upper 70s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the upper 50s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Partly cloudy. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ004-182215-
Boone-
Including the city of Belvidere
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the mid 80s. South
winds 5 to 10 mph. Chance of precipitation 60 percent.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s. South winds around 5 mph. Chance of
precipitation 50 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A slight chance of showers and thunderstorms. Highs in
the lower 80s. West winds 5 to 10 mph, becoming northwest in the
afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
around 5 mph.
.WEDNESDAY...Partly cloudy through mid afternoon, then becoming
mostly sunny. Highs in the upper 70s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the upper 50s.
.THURSDAY...Mostly sunny. Highs around 80.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ008-182215-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then numerous showers and
thunderstorms in the afternoon. Highs in the upper 80s. South
winds 5 to 10 mph. Chance of precipitation 60 percent. Heat index
values up to 100.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 70. Southwest winds around 5 mph. Chance of
precipitation 50 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A slight chance of showers and thunderstorms. Highs in
the mid 80s. West winds 5 to 10 mph, becoming northwest in the
afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
around 5 mph.
.WEDNESDAY...Partly cloudy. Highs in the upper 70s. Northeast
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the upper 50s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Partly cloudy. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ011-182215-
De Kalb-
Including the cities of DeKalb and Sycamore
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms early to mid afternoon. Numerous showers and
thunderstorms late in the afternoon. Highs in the upper 80s.
South winds 5 to 10 mph. Chance of precipitation 60 percent. Heat
index values up to 100 in the afternoon.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 70. South winds around 5 mph. Chance of precipitation
50 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A slight chance of showers and thunderstorms.
Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest
in the afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy through the early overnight, then
becoming mostly cloudy. Lows in the mid 60s. North winds around
5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the upper 70s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 60.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ010-182215-
Lee-
Including the city of Dixon
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Decreasing cloudiness. A slight chance of
showers and thunderstorms late in the morning, then numerous
showers and thunderstorms in the afternoon. Highs in the upper
80s. South winds 5 to 10 mph. Chance of precipitation 60 percent.
Heat index values up to 101.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 70. South winds around 5 mph. Chance of precipitation
50 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A slight chance of showers and thunderstorms. Highs in
the mid 80s. West winds 5 to 10 mph, becoming northwest in the
afternoon. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds
5 to 10 mph.
.WEDNESDAY...Partly cloudy. Highs in the upper 70s. Northeast
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the upper 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the upper 70s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.

$$

ILZ019-182215-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Increasing cloudiness. A slight chance of
showers and thunderstorms late in the morning, then scattered
showers and thunderstorms early to mid afternoon. Numerous
showers and thunderstorms late in the afternoon. Highs in the
upper 80s. South winds 5 to 10 mph. Chance of precipitation
60 percent. Heat index values up to 102.
.TONIGHT...Mostly cloudy. Scattered showers and thunderstorms in
the evening, then showers and thunderstorms likely after
midnight. A chance of showers and thunderstorms late. Lows in the
lower 70s. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms, mainly in
the morning. Highs in the upper 80s. West winds 5 to 10 mph.
Chance of precipitation 40 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 60s. North
winds 5 to 10 mph.
.WEDNESDAY...Partly cloudy. Highs around 80. North winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ021-182215-
Grundy-
Including the cities of Morris, Coal City, and Minooka
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Increasing cloudiness. A slight chance of
showers and thunderstorms late in the morning. Scattered showers
and thunderstorms early to mid afternoon, then numerous showers
and thunderstorms late in the afternoon. Highs in the upper 80s.
South winds 5 to 10 mph. Chance of precipitation 60 percent. Heat
index values up to 103.
.TONIGHT...Showers and thunderstorms likely. Lows in the lower
70s. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms, mainly in
the morning. Highs in the upper 80s. West winds 5 to 10 mph.
Chance of precipitation 40 percent.
.TUESDAY NIGHT...Partly cloudy through the early overnight, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Partly cloudy. Highs in the lower 80s. North winds
5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ032-182215-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. A slight chance of showers and
thunderstorms late in the morning. Scattered showers and
thunderstorms in the afternoon. Highs in the upper 80s. South
winds 5 to 10 mph. Chance of precipitation 50 percent. Heat index
values up to 103.
.TONIGHT...Partly cloudy early in the evening, then becoming
mostly cloudy. Scattered showers and thunderstorms in the
evening, then showers and thunderstorms likely after midnight. A
chance of showers and thunderstorms late. Lows in the lower 70s.
South winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the upper 80s. West winds around 5 mph. Chance of precipitation
50 percent. Heat index values up to 100.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. Lows in the upper 60s. North winds around 5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the lower 80s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ023-182215-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms in the afternoon. Highs in the upper 80s. Southeast
winds around 10 mph, becoming south in the afternoon. Chance of
precipitation 50 percent. Heat index values up to 100.
.TONIGHT...Numerous showers and thunderstorms early in the
evening, then a chance of showers and thunderstorms late in the
evening. Showers and thunderstorms likely after midnight. Lows in
the lower 70s. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the upper 80s. Southwest winds 5 to 10 mph, becoming northwest in
the afternoon. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. Lows in the upper 60s. North winds around
5 mph.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs around 80. North winds 5 to 10 mph,
increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

ILZ039-182215-
Ford-
Including the cities of Paxton and Gibson City
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. A slight chance of showers and
thunderstorms late in the morning, then scattered showers and
thunderstorms in the afternoon. Highs in the upper 80s. South
winds 5 to 10 mph. Chance of precipitation 50 percent. Heat index
values up to 101.
.TONIGHT...Partly cloudy early in the evening, then becoming
mostly cloudy. Scattered showers and thunderstorms in the
evening, then showers and thunderstorms likely after midnight. A
chance of showers and thunderstorms late. Lows in the lower 70s.
South winds around 5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A chance of showers and thunderstorms. Highs in the upper
80s. Southwest winds 5 to 10 mph, becoming northwest in the
afternoon. Chance of precipitation 50 percent. Heat index values
up to 101.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A slight chance of showers in the evening. Lows in
the upper 60s. North winds around 5 mph. Chance of precipitation
20 percent.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the lower 80s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Sunny. Highs in the upper 70s.

$$

ILZ033-182215-
Iroquois-
Including the cities of Watseka and Gilman
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. A chance of showers and
thunderstorms late in the morning, then a slight chance of
showers and thunderstorms late in the morning. Scattered showers
and thunderstorms in the afternoon. Highs in the upper 80s. South
winds 5 to 10 mph. Chance of precipitation 50 percent. Heat index
values up to 100.
.TONIGHT...Partly cloudy early in the evening, then becoming
mostly cloudy. Scattered showers and thunderstorms in the
evening, then showers and thunderstorms likely after midnight.
Lows in the lower 70s. South winds around 5 mph. Chance of
precipitation 60 percent.
.TUESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. A chance of showers and thunderstorms. Highs in the upper
80s. West winds around 5 mph. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. A slight chance of showers in the
evening. Lows in the upper 60s. North winds around 5 mph. Chance
of precipitation 20 percent.
.WEDNESDAY...Mostly cloudy through mid morning, then becoming
partly cloudy. Highs in the lower 80s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the mid 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Sunny. Highs in the upper 70s.

$$

INZ010-182215-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. Showers and thunderstorms likely
late in the morning, then isolated showers and thunderstorms
early to mid afternoon. Scattered showers and thunderstorms late
in the afternoon. Highs in the upper 80s. Southeast winds 5 to
10 mph. Chance of precipitation 60 percent.
.TONIGHT...Partly cloudy early in the evening, then becoming
mostly cloudy. Scattered showers and thunderstorms in the
evening, then showers and thunderstorms likely after midnight.
Lows around 70. South winds around 5 mph. Chance of precipitation
60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the upper 80s. Southwest winds around 5 mph, becoming west in the
afternoon. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy early in the evening, then
becoming mostly cloudy. A slight chance of showers in the
evening. Lows in the upper 60s. North winds around 5 mph. Chance
of precipitation 20 percent.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs around 80. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ011-182215-
Jasper-
Including the cities of Rensselaer and DeMotte
949 AM CDT Mon Aug 18 2025

.REST OF TODAY...Mostly cloudy late in the morning, then becoming
partly cloudy. Showers and thunderstorms likely late in the
morning, then isolated showers and thunderstorms early to mid
afternoon. Scattered showers and thunderstorms late in the
afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph.
Chance of precipitation 60 percent.
.TONIGHT...Partly cloudy early in the evening. Scattered showers
and thunderstorms through the early overnight, then showers and
thunderstorms likely late. Lows around 70. Southeast winds around
5 mph. Chance of precipitation 60 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the mid 80s. Southwest winds around 5 mph, becoming west in the
afternoon. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A slight chance of showers in the evening. Lows in
the upper 60s. North winds around 5 mph. Chance of precipitation
20 percent.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs around 80. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows around 60.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.

$$

INZ019-182215-
Benton-
Including the cities of Fowler and Oxford
1049 AM EDT Mon Aug 18 2025

.REST OF TODAY...Partly cloudy. Showers and thunderstorms likely
late in the morning, then isolated showers and thunderstorms
early to mid afternoon. Scattered showers and thunderstorms late
in the afternoon. Highs in the upper 80s. Southeast winds 5 to
10 mph. Chance of precipitation 60 percent.
.TONIGHT...Partly cloudy in the evening, then becoming mostly
cloudy. Scattered showers and thunderstorms. Lows around 70.
Southeast winds around 5 mph. Chance of precipitation 50 percent.
.TUESDAY...Mostly cloudy through mid afternoon, then becoming
partly cloudy. A chance of showers and thunderstorms. Highs in
the upper 80s. West winds around 5 mph. Chance of precipitation
50 percent.
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
mostly cloudy. A slight chance of showers. Lows in the upper 60s.
North winds around 5 mph. Chance of precipitation 20 percent.
.WEDNESDAY...Mostly cloudy in the morning, then becoming partly
cloudy. Highs in the lower 80s. North winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the mid 80s.
.SATURDAY NIGHT...Clear. Lows in the upper 50s.
.SUNDAY...Sunny. Highs in the upper 70s.

$$