* WHAT…Temperatures as low as 35, in combination with light winds and mostly clear skies, will result in frost formation. * WHERE…Koochiching, North Itasca, Central St. Louis, North St. Louis, and Northern Cook and Lake Counties. * WHEN…From midnight tonight to 8 AM CDT Monday. * IMPACTS…Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered
Source: National Weather Service
Indexed: Sun, 13 Sep 2026 10:20:26 UTC
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