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TWIN CITIES NEWS | Extreme Heat Warning Takes Effect as Weekend Heat Index Could Reach 107 Degrees
MINNEAPOLIS, MN (July 25, 2026). The National Weather Service has placed the Twin Cities under an Extreme Heat Warning as dangerously hot and humid conditions move across Minnesota this weekend.
The warning took effect at noon Saturday and is scheduled to remain in place through 6 a.m. Monday.
Forecasters expect temperatures in Minneapolis to reach approximately 94 degrees Saturday before climbing to 97 degrees Sunday. The combination of heat and high humidity could produce heat index values near 100 Saturday and as high as 107 Sunday.
A slight chance of thunderstorms is possible Sunday afternoon, followed by a greater chance Sunday night. However, the storms are not expected to arrive soon enough to prevent dangerous daytime heat.
Heat poses serious health risks
Extreme heat can overwhelm the body’s ability to regulate its temperature, particularly when humidity slows the evaporation of sweat.
Older adults, infants, young children, pregnant people, outdoor workers and people with chronic medical conditions face elevated risks. Residents without reliable air conditioning may also become vulnerable when overnight temperatures remain warm.
Sunday night’s low is expected to remain near 76 degrees, providing limited relief for homes and apartments without air conditioning.
Heat exhaustion can cause heavy sweating, weakness, dizziness, nausea, headache and fainting. Heat stroke is a medical emergency that may cause confusion, loss of consciousness and a dangerously high body temperature.
Anyone showing possible symptoms of heat stroke should receive immediate emergency assistance.
Residents encouraged to limit outdoor activity
Minnesotans are advised to reduce strenuous outdoor activity during the hottest part of the day, drink water regularly and spend time inside air-conditioned buildings whenever possible.
Residents should check on older relatives, neighbors and others who may need assistance. Children and animals must never be left inside parked vehicles, even briefly.
People attending outdoor events, including the 3M Open in Blaine and community festivals throughout the region, should bring water, use sunscreen, wear lightweight clothing and watch for symptoms of heat-related illness.
The National Weather Service also forecasts a slight chance of thunderstorms Sunday afternoon and a 50 percent chance Sunday night. Some storms could provide localized relief, but residents should continue following the heat warning until it expires.
Sources:
MinneapoliMedia | Community. Culture. Civic Life.
