Photo: Brecht Denil on Unsplash.com

By Laura Durenberger-Grunow - Boreal Community Media - May 23, 2025

The National Weather Service in Duluth has issued a Frost Advisory for Cook and Lake Counties and Grand Portage for Saturday, May 24, from 1 a.m. to 9 a.m.

Temperatures are predicted to fall to between 32°F and 35°F, which could lead to widespread frost formation. Any sensitive outdoor vegetation should be covered.