Illinois, Indiana Freeze Watch | Effective 04/18/2026 11:29
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
* WHAT...For the Frost Advisory, temperatures as low as 33 will<br />
result in frost formation. For the Freeze Watch, sub-freezing<br />
temperatures as low as 28 possible.
* WHERE...Portions of central, east central, north central, and<br />
northeast Illinois and northwest Indiana.
* WHEN...For the Frost Advisory, from midnight CDT /1 AM EDT/<br />
tonight to 9 AM CDT /10 AM EDT/ Sunday. For the Freeze Watch, from<br />
late Sunday night through Monday morning.