MINNEAPOLIS, MINN. — A brutal stretch of heat, humidity, and violent storms is bearing down on the Twin Cities and much of Minnesota, with forecasters warning that next week’s conditions could turn dangerous fast — and the heat index numbers tell a story that thermometers alone cannot.
From Monday, June 29 through Thursday, July 3, high temperatures across the Twin Cities are expected to climb into the low 90s, but the real danger lies in what it will feel like. Heat index values are forecast to surge above 100 degrees during the hottest parts of each afternoon — a threshold that health officials warn can quickly lead to heat exhaustion and heat stroke, especially for the elderly, children, and those without air conditioning.
St. Cloud is expected to hit 92 degrees. Mankato could reach 93. Rochester climbs to 92 on Monday alone.
But the heat is only half the story.
The same combination of heat and thick humidity loading the atmosphere will repeatedly fuel the potential for strong to severe thunderstorms throughout the week. Damaging winds, large hail, and heavy rainfall are all on the table with any storm system that develops. Forecasters say the risk for severe thunderstorms will remain elevated at multiple points between June 29 and July 3 — meaning residents across Minneapolis, St. Cloud, Mankato, and surrounding communities could face dangerous conditions both day and night.
For those hoping the heat breaks in time for Fourth of July celebrations, there is cautious good news. Current forecast guidance shows July 4 looking partly cloudy with highs in the mid-80s and temperatures near 80 degrees during fireworks — conditions that appear manageable for outdoor gatherings, though the forecast will continue to shift as the week progresses.
Residents across the region are strongly urged to check updated forecasts daily, limit outdoor activity during peak afternoon heat, never leave children or pets in parked vehicles, and have a plan in place if severe storms threaten.
This week, Minnesota’s weather demands your full attention.
