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Frost Advisory

Status

Event Continued Active alert

Start Time

Sun 10/18/2026 04:00 AM EDT

End Time

Sun 10/18/2026 09:00 AM EDT

Significance

Advisory

Impacts

Low impact

Locations Affected

Gary, IN ∙ Hammond, IN ∙ Ross, IN ∙ Portage, IN ∙ Blackstone, IL ∙ Sammons Point, IL ∙ Milford, IL ∙ Gilman, IL ∙ Donovan, IL ∙ Dyer, IN

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Chicago IL 124 PM CDT Sat Oct 17 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM CDT /4 AM EDT/ TO 8 AM CDT /9 AM EDT/ SUNDAY... * WHAT...Low temperatures in the low to mid 30s will result in frost formation. * WHERE...In Illinois, Livingston, Ford, Iroquois, Eastern Will, and Kankakee Counties. In Indiana, Benton, Jasper, Lake IN, Newton, and Porter Counties. * WHEN...From 3 AM CDT /4 AM EDT/ to 8 AM CDT /9 AM EDT/ Sunday. * 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.

Technical Header

ILZ023-032-033-039-108-INZ001-002-010-011-019-180430- /O.CON.KLOT.FR.Y.0006.261018T0800Z-261018T1300Z/ Kankakee-Livingston-Iroquois-Ford-Eastern Will-Lake IN-Porter- Newton-Jasper-Benton- Including the cities of Paxton, Merrillville, Portage, Dwight, Fowler, Watseka, Pontiac, Crete, Oxford, DeMotte, Gary, Bourbonnais, Gilman, Morocco, Peotone, Beecher, Valparaiso, Kentland, Rensselaer, Gibson City, Kankakee, Roselawn, Chesterton, Hammond, Fairbury, and Bradley 124 PM CDT Sat Oct 17 2026 /224 PM EDT Sat Oct 17 2026/