Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >
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| 040 FLUS43 KLOT 052105 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 405 PM CDT Fri Jun 5 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-062115- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 405 PM CDT Fri Jun 5 2026 /505 PM EDT Fri Jun 5 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Tonight. Weather hazards expected... Elevated Thunderstorm Risk...with an associated: Level 2 of 5 Damaging Wind Risk...up to 60 mph. Level 1 of 5 Large Hail Risk...up to half dollar size. Limited Flooding Risk. DISCUSSION... A few isolated non-severe thunderstorms may occur into this evening. Scattered to numerous thunderstorms may develop overnight, mainly near and south of I-80. A few of these overnight storms may become strong to severe and will also produce torrential rainfall that could lead to localized flooding. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday... Limited Flooding Risk. Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Sunday... Limited Flooding Risk. Limited Thunderstorm Risk. Monday... Elevated Flooding Risk. Elevated Thunderstorm Risk. Tuesday through Thursday... Limited Thunderstorm Risk. DISCUSSION... Scattered thunderstorms are possible on Saturday. A few strong to locally severe storms are possible, mainly in the afternoon along and south of the I-80 corridor. The weather pattern will continue to feature seasonably warm and humid conditions into next week, with periodic shower and thunderstorm chances. Some of the storms from this weekend into Monday may be capable of producing heavy downpours which could lead to localized flooding. .SPOTTER INFORMATION STATEMENT... Spotters may be needed overnight tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the east at 30 to 40 mph. $$ LMZ740>745-062115- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 405 PM CDT Fri Jun 5 2026 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Elevated Thunderstorm Risk...with an associated: Level 1 of 5 Thunderstorm Wind Gust Risk...up to 50 kts. Level 1 of 5 Hail Risk...up to quarter size. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday... Limited Thunderstorm Risk...with an associated: Level 1 of 5 Severe Thunderstorm Risk. Sunday through Thursday... Limited Thunderstorm Risk. $$ Visit us at www.weather.gov/chicago |
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