Minnesota braces for extreme heat and a week-long surge of possibly dangerous temperatures ahead

The Twin Cities is about to enter one of the most uncomfortable stretches of weather in months, with dangerously hot conditions set to dominate the forecast through the end of the week.

Saturday will feature sunshine and some humidity pushing highs into the 80s for the first time in over two weeks. A stray shower or thundershower is possible near the Canadian border, but otherwise conditions should remain mostly dry.

Sunday will bring the arrival of hot and very humid conditions, with heat indices reaching the low 90s by afternoon. Augustyniak forecasts a good chance of morning thunderstorms in the Twin Cities area, likely between 7 a.m. and noon. Northern Minnesota will see thunderstorms off and on throughout the day.

From there it gets even more potentially dangerous. According to Augustyniak, Monday will be the hottest day since September 2023, with a predicted high of 98 degrees. More alarming than the temperature itself are the dangerous heat index values expected to exceed 105 degrees.

WCCO has issued a NEXT Weather Alert for these conditions, and the National Weather Service is likely to issue an extreme heat warning.

The remainder of the week will see highs remaining in the 90s with lows in the 70s. While each day carries a low-grade isolated thunderstorm threat, Augustyniak warns that any storms able to form during this hot stretch will quickly intensify into severe weather.