Freeze Warning goes into effect at midnight
perigon
Last updated: April 21, 2026
A freeze warning has been issued for several areas, set to begin at midnight and extend through Monday morning. This warning will be in effect for most of the region, with an exception for central Cook County.
- The freeze warning is scheduled to start at 12 a.m. and conclude at 9 a.m. on Monday. This advisory covers all geographic areas within the forecast region, with the notable exclusion of central Cook County. The National Weather Service is issuing this warning to alert residents to the imminent threat of freezing temperatures. Such conditions can be harmful to plants and outdoor activities. Residents are advised to take necessary precautions to protect sensitive vegetation and outdoor property from potential frost and ice. The timing of the warning indicates that overnight lows are expected to drop to or below freezing.
