Frost Advisory issued September 20 at 4:46PM CDT until September 21 at 8:00AM CDT by NWS Duluth MN
Issue date: 2026-09-20T21:46+00:00
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Koochiching, North St. Louis, and Northern Cook and Lake Counties. * WHEN...From 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
