42°23'北 / 88°3'西 / 高度 242 m / 22:50 2026-05-01, America/Chicago (UTC-5)
开始于: 2026-05-02, 01:00
到: 2026-05-02, 07:15
* WHAT...Temperatures as low as 32 degrees will result in frost formation. * WHERE...Portions of east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.