Expected

Responsive action SHOULD be taken soon (within next hour)

Illinois, Indiana Minor Frost Advisory | Effective 10/17/2026 00:22

* 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 to 8 AM CDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Take steps now to protect tender plants from the cold.

Iowa Severe Freeze Warning | Effective 10/17/2026 00:24

* WHAT...Sub-freezing temperatures as low as 29-32 expected and widespread frost. * WHERE...Portions of central, north central, northeast, northwest, south central, southeast, southwest, and west central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

Iowa, Illinois, Missouri Minor Frost Advisory | Effective 10/17/2026 00:24

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of north central, northwest, and west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Take steps now to protect tender plants from the cold.
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