41°53'北 / 88°1'西 / 高度 215 m / 11:37 2026-05-01, America/Chicago (UTC-5)
开始于: 2026-05-01, 10:24
到: 2026-05-01, 20:30
* WHAT...Temperatures as low as 32 degrees Fahrenheit 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.