2 products issued by NWS for: Lake Forest IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago IL 325 AM CDT Sat Oct 17 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-180830- 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- 325 AM CDT Sat Oct 17 2026 /425 AM EDT Sat Oct 17 2026/ This Hazardous Weather Outlook is for portions of central Illinois, east central Illinois, north central Illinois, northeast Illinois, and northwest Indiana. .DAY ONE...Today and Tonight Frost is likely tonight, particularly east of I-55 and south of I-80 in Illinois as well as across northwest Indiana. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. Beginning Monday, October 19th, the Hazardous Weather Outlook will no longer be issued by the Chicago forecast office as we transition to more effective methods of communicating this information. For a detailed look at all weather hazards expected during the next week, please see our Graphical Hazardous Weather Outlook. On our website, weather (dot) gov slash Chicago, this is the first link under the "Current Hazards" tab. For a summary of our key weather messages, including storm motions when thunderstorms are expected, please see the Weather Story graphics available on our website and our social media channels. $$
Frost Advisory
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 222 AM CDT Sat Oct 17 2026 ILZ006-171300- /O.CON.KLOT.FR.Y.0005.261017T1000Z-261017T1300Z/ Lake IL- Including the cities of Buffalo Grove, Waukegan, Gurnee, and Mundelein 222 AM CDT Sat Oct 17 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING FOR WESTERN LAKE COUNTY... * WHAT...Low temperatures in the mid 30s will result in frost formation. * WHERE...Western Lake IL County. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$