Zone Forecast Product
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
973 FPUS53 KLOT 182251 AAA ZFPLOT Zone Forecast Product...UPDATED National Weather Service Chicago/Romeoville, IL 551 PM CDT Mon Aug 18 2025 ILZ104-191315- Central Cook- Including the cities of Chicago, Cicero, Oak Lawn, Oak Park, and La Grange 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly 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...Mostly cloudy. Lows in the lower 70s. 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. Nearly steady temperatures in the lower 70s. North winds 10 to 15 mph, becoming northeast 5 to 10 mph after midnight. .THURSDAY...Sunny. Highs in the lower 80s. .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...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. $$ ILZ103-191315- Northern Cook- Including the cities of Evanston, Des Plaines, Schaumburg, Palatine, and Northbrook 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Locally heavy rainfall possible in the evening. Nearly steady temperatures in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy. A slight chance of showers and thunderstorms through mid morning. Highs in the mid 80s. West winds 5 to 10 mph, becoming north in the afternoon. Chance of precipitation 20 percent. .TUESDAY NIGHT...Decreasing cloudiness. Lows in the upper 60s. North winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 70s. North winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Sunny. Highs in the lower 80s inland, but only in the upper 70s near the lake. .THURSDAY NIGHT...Clear. Lows in the mid 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs around 80. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Mostly sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ105-191315- Southern Cook- Including the cities of Calumet City, Oak Forest, Lemont, Orland Park, and Park Forest 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly 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 upper 80s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. Lows around 70. North winds around 5 mph. .WEDNESDAY...Mostly cloudy through mid morning, then becoming partly cloudy. Highs around 80. North winds 10 to 15 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 60s. Northeast winds 5 to 10 mph. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the mid 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 around 60. .SUNDAY...Mostly sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ ILZ006-191315- Lake IL- Including the cities of Waukegan, Buffalo Grove, Mundelein, and Gurnee 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy. Highs in the lower 80s. West winds 5 to 10 mph, becoming north in the afternoon. .TUESDAY NIGHT...Decreasing cloudiness. Lows in the upper 60s. North winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 70s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Sunny. Highs around 80. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Partly cloudy. Highs in the lower 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Sunny. Highs in the upper 70s. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Mostly sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ005-191315- McHenry- Including the cities of Crystal Lake, Algonquin, McHenry, and Woodstock 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows around 70. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the lower 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .TUESDAY NIGHT...Mostly cloudy early in the evening, then becoming partly cloudy. Lows in the mid 60s. North winds around 5 mph. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly cloudy. 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...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. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs around 70. $$ ILZ012-191315- Kane- Including the cities of Aurora and Elgin 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Locally heavy rainfall possible in the evening. Lows around 70. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A slight chance of showers and thunderstorms through mid morning. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 20 percent. .TUESDAY NIGHT...Mostly cloudy early in the evening, then becoming partly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the upper 70s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows around 60. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ013-191315- DuPage- Including the cities of Naperville, Wheaton, Downers Grove, Lombard, and Carol Stream 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly 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 around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the upper 70s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy early in the evening, then becoming mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...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 around 80. .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. $$ ILZ020-191315- Kendall- Including the cities of Oswego, Yorkville, and Plano 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 20 percent. .TUESDAY NIGHT...Mostly cloudy early in the evening, then becoming partly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the lower 80s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs around 80. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ106-191315- Northern Will- Including the cities of Joliet, Bolingbrook, Plainfield, and Mokena 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly 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...Increasing cloudiness. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs around 80. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...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 around 80. .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. $$ ILZ107-191315- Southern Will- Including the cities of Channahon, Manhattan, and Wilmington 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall in the evening. Locally heavy rainfall possible early in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 80 percent. .TUESDAY...Mostly cloudy. A chance of showers and thunderstorms through mid morning, then a slight chance of showers and thunderstorms in the late morning and afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 40 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the lower 80s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ ILZ108-191315- Eastern Will- Including the cities of Crete, Peotone, and Beecher 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall in the evening. Locally heavy rainfall possible early in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 80 percent. .TUESDAY...Mostly 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 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...Partly cloudy through mid afternoon, then becoming mostly sunny. 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 mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...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 around 80. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ INZ001-191315- Lake IN- Including the cities of Gary, Hammond, and Merrillville 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Thunderstorms likely in the evening. Showers likely. Thunderstorms likely after midnight. Some thunderstorms may produce heavy rainfall in the evening. Lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 70 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy early in the evening, then becoming mostly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy through mid afternoon, then becoming mostly sunny. Highs in the upper 70s. North winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ INZ002-191315- Porter- Including the cities of Portage, Valparaiso, and Chesterton 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 80 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 around 5 mph. .WEDNESDAY...Partly cloudy through mid afternoon, then becoming mostly sunny. 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 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...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ003-191315- Winnebago- Including the city of Rockford 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds, large hail, and heavy rainfall, then some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible early in the evening. Lows around 70. Southwest winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds around 5 mph. .WEDNESDAY...Mostly cloudy through mid morning, then becoming partly cloudy. Highs in the upper 70s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the upper 50s. .FRIDAY...Partly cloudy. Highs in the lower 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MONDAY...Mostly sunny. Highs around 70. $$ ILZ004-191315- Boone- Including the city of Belvidere 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail, then some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible early in the evening. Lows in the upper 60s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the lower 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .TUESDAY NIGHT...Mostly cloudy early in the evening, then becoming 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...Mostly clear through the early overnight, then becoming partly cloudy. Lows around 60. Northeast winds 5 to 10 mph. .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 mid 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs around 70. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MONDAY...Mostly sunny. Highs around 70. $$ ILZ008-191315- Ogle- Including the cities of Rochelle, Oregon, and Byron 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows around 70. Southwest winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the upper 70s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the upper 50s. .FRIDAY...Partly cloudy. Highs in the lower 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ011-191315- De Kalb- Including the cities of DeKalb and Sycamore 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Locally heavy rainfall possible in the evening. Lows around 70. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .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...Mostly clear through the early overnight, then becoming partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph. .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. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ010-191315- Lee- Including the city of Dixon 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds and large hail early in the evening. Locally heavy rainfall possible in the evening. Lows around 70. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 80s. West winds 5 to 10 mph, becoming northwest in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs around 80. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear through the early overnight, then becoming partly cloudy. Lows around 60. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows around 60. .FRIDAY...Mostly sunny. Highs in the lower 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ019-191315- La Salle- Including the cities of Ottawa, Streator, La Salle, Mendota, and Marseilles 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Mostly cloudy. Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds, large hail, and heavy rainfall early in the evening. Some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 90 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A chance of showers and thunderstorms through mid morning. A slight chance of showers and thunderstorms in the late morning and afternoon. Highs in the upper 80s. West winds 5 to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy early in the evening, then becoming partly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the lower 80s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear through the early overnight, then becoming partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph. .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 upper 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the lower 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ021-191315- Grundy- Including the cities of Morris, Coal City, and Minooka 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... ...SEVERE THUNDERSTORM WATCH 599 IN EFFECT UNTIL 8 PM CDT THIS EVENING... .TONIGHT...Showers and thunderstorms, mainly in the evening. Some thunderstorms may produce damaging winds, large hail, and heavy rainfall, then some thunderstorms may produce heavy rainfall late in the evening. Locally heavy rainfall possible early in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 80 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A chance of showers and thunderstorms through mid morning, then a slight chance of showers and thunderstorms in the late morning and afternoon. Highs in the upper 80s. West winds 5 to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy. Highs in the lower 80s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. North winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs around 80. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ032-191315- Livingston- Including the cities of Pontiac, Dwight, and Fairbury 551 PM CDT Mon Aug 18 2025 .TONIGHT...Thunderstorms likely in the evening. Showers likely. A chance of thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 70 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 upper 80s. West winds around 5 mph. 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 lower 80s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 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 mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ ILZ023-191315- Kankakee- Including the cities of Kankakee, Bourbonnais, and Bradley 551 PM CDT Mon Aug 18 2025 ...FLOOD WATCH IN EFFECT UNTIL 4 AM CDT TUESDAY... .TONIGHT...Thunderstorms likely in the evening. Showers likely. Thunderstorms likely after midnight. Some thunderstorms may produce heavy rainfall in the evening. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 70 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A chance of showers and thunderstorms through mid morning, then a slight chance of showers and thunderstorms in the late morning and afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy early in the evening, then becoming mostly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Partly cloudy through mid afternoon, then becoming mostly sunny. Highs in the lower 80s. North winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ ILZ039-191315- Ford- Including the cities of Paxton and Gibson City 551 PM CDT Mon Aug 18 2025 .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 50 percent. .TUESDAY...Mostly 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 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 in the lower 80s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear early in the evening, then becoming partly cloudy. Lows in the mid 60s. North winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 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 mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ ILZ033-191315- Iroquois- Including the cities of Watseka and Gilman 551 PM CDT Mon Aug 18 2025 .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of precipitation 60 percent. .TUESDAY...Mostly cloudy. A chance of showers and thunderstorms through mid morning, then a slight chance of showers and thunderstorms late in the morning. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. West winds around 5 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy early in the evening, then becoming mostly cloudy. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Mostly cloudy through mid morning, then becoming partly cloudy. Highs in the lower 80s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear early in the evening, then becoming partly cloudy. Lows in the lower 60s. North winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 80s. .THURSDAY NIGHT...Clear. Lows around 60. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ INZ010-191315- Newton- Including the cities of Roselawn, Kentland, and Morocco 551 PM CDT Mon Aug 18 2025 .TONIGHT...Mostly cloudy. A chance of 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. Lows in the upper 60s. North winds around 5 mph. .WEDNESDAY...Mostly cloudy through mid morning, then clearing. 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. .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 mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$ INZ011-191315- Jasper- Including the cities of Rensselaer and DeMotte 551 PM CDT Mon Aug 18 2025 .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms. Lows around 70. Southeast winds around 5 mph. Chance of precipitation 50 percent. .TUESDAY...Mostly cloudy through mid afternoon, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. Southwest winds around 5 mph, becoming west in the afternoon. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. North winds around 5 mph. Chance of precipitation 20 percent. .WEDNESDAY...Mostly cloudy through mid morning, then becoming partly cloudy. Highs in the lower 80s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the lower 70s. $$ INZ019-191315- Benton- Including the cities of Fowler and Oxford 651 PM EDT Mon Aug 18 2025 .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms. Lows around 70. Southeast winds around 5 mph. Chance of precipitation 50 percent. .TUESDAY...Mostly 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 and thunderstorms 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...Mostly clear early in the evening, then becoming partly cloudy. Lows in the mid 60s. North winds 5 to 10 mph. .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 mid 50s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. .MONDAY...Mostly sunny. Highs in the mid 70s. $$