Duluth, Minnesota – Southern parts of Minnesota’s Northland are in for a sweltering weekend, with heat index values pushing into the mid-90s by Saturday afternoon, particularly across Brainerd, Siren, and Hayward. While lakeside areas like Duluth and Grand Marais will remain cooler, inland communities could face heat advisories.
According to the National Weather Service in Duluth, widespread high temperatures in the 80s are expected Saturday and Sunday, but humidity will drive apparent temperatures even higher in the southern and central counties. Cities including Brainerd (92°F), Siren (94°F), and Aitkin (91°F) will feel the most intense effects Saturday, while Sunday sees slightly lower indices but continued discomfort, especially in Hayward and Phillips.
Heat-sensitive populations are urged to stay indoors during peak afternoon hours, hydrate frequently, and avoid strenuous outdoor activity. Residents near Lake Superior can expect some natural relief, with places like Grand Marais and Silver Bay seeing maximum values in the 60s and 70s.
NWS warns that heat advisories may be issued depending on evolving conditions, particularly if humidity remains elevated. Weekend travelers should prepare for warm, muggy weather—especially away from the lakefront.