Temperatures in the Twin Cities are expected to remain high. A heat advisory is in effect until 8 pm. The area experienced its hottest day in four years on Sunday, with a high of 99 degrees.

This morning's conditions are still warm, with temperatures near 80 degrees. The air is also very moist, with a dew point that has not been seen in the area since 2011. Further details on the heat advisory and expected weather conditions are available from Minnesota's Weather Authority.

The heat index is expected to rise, and temperatures will stay near 90 degrees for the rest of the week.