Illinois Freeze Watch | Effective 04/18/2026 18:35

Headline: 
Freeze Watch issued April 18 at 8:35PM CDT until April 20 at 9:00AM CDT by NWS Chicago IL
Event: 
Freeze Watch
Urgency: 
Future
Effective: 
April 18, 2026 - 6:35pm
Expires: 
April 19, 2026 - 4:45am
Description: 
* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Northern Cook and Southern Cook Counties. * WHEN...From late Sunday night through Monday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Instruction: 
Take steps now to protect tender plants from the cold.
Area Description: 
Northern Cook; Southern Cook
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov