Extreme Heat Warning

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Duluth MN 140 PM CDT Mon Jul 13 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with temperatures up to 100. * WHERE...Koochiching, Itasca, Central and North St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation and the Bois Forte Band, Nett Lake, Lake Vermilion and, Deer Creek areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.